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Keystone, Getty Images

42 Facts About Jackie Robinson

Keystone, Getty Images
Keystone, Getty Images

On April 15, 1947—71 years ago—Jackie Robinson broke the baseball color line and became the first African American to play on a major sports team. Here are 42 facts to celebrate the legendary athlete.

1. Jack "Jackie" Roosevelt Robinson was born on January 31, 1919, in Cairo, Georgia. Shortly after his birth, his family moved and settled in Pasadena, California.

2. President Theodore Roosevelt, who died 25 days before Robinson was born, was the inspiration for his middle name.

3. He was the youngest of five children—Edgar, Frank, Matthew “Mack,” and Willa Mae—and grew up in relative poverty in a well-off community in Pasadena.

4. Robinson attended John Muir High School, where he was placed on the Pomona Annual Baseball Tournament All-Star Team with fellow future Baseball Hall of Famers Ted Williams of the Boston Red Sox and Bob Lemon of the Cleveland Indians.

5. He was also an accomplished tennis player, winning the junior boys singles championship in the Pacific Coast Negro Tennis Tournament.

6. Jackie’s brother Mack was an adept athlete and a splendid sprinter. He won a Silver Medal in the 200 meters behind Jesse Owens during the 1936 Summer Olympics in Berlin, Germany.


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7. In 1942, Jackie Robinson was drafted into the Army. He was assigned to a segregated Army Cavalry unit in Fort Riley, Kansas.

8. While in the Army, Robinson became friends with boxing champion Joe Louis when the heavyweight, who was stationed at Fort Riley at the time, used his celebrity to protest the delayed entry of black soldiers in an Office Candidate School (OCS). As a result, Robinson was commissioned as a second lieutenant in 1943.

9. After an incident where he refused to sit in the back of an unsegregated bus, military police arrested Robinson at the request of a duty officer, who later requested Robinson be court-martialed. At the time of the proceedings, Robinson was prohibited from being deployed overseas to the World War II battlefronts. He never saw combat during the war.

10. Robinson was acquitted and then assigned to Camp Breckinridge in Kentucky, where he worked as an Army athletics coach until he was given an honorable discharge in 1944. During his time at the camp, Robinson was encouraged to tryout for the Kansas City Monarchs in the Negro National League.

11. In 1945, Robinson signed a contract to play for the Kansas City Monarchs. He was paid $400 a month (about $5100 today) to play shortstop and eventually was placed in the Negro League All-Star Game that year.

12. Robinson married Rachel Islum—who he had met in 1941 during his senior year at UCLA—in 1946. They had their first son, Jackie Robinson Jr., that November. The Robinsons had two more children: a daughter, Sharon, and another son, David.


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13. Robinson played Minor League Baseball for the Montreal Royals in 1946, until he was called up to play for the Brooklyn Dodgers in the Major Leagues in 1947.

14. He made his Major League Baseball debut on April 15, 1947, at Ebbets Field in Brooklyn, New York. He became the first African-American baseball player in Major League history.

15. He also won Rookie of the Year in 1947 with a batting average of .297, 175 hits, 12 home runs, and 48 runs batted in.

16. Jackie Robinson had a close friendship with Larry Doby of the Cleveland Indians, who was the first African-American baseball player in the American League. The two men broke the color barrier in baseball in the same year and would talk to each other on the telephone to share their experiences with racism during the season.

17. Dodgers teammate Pee Wee Reese defended Robinson against violent and nasty racial slurs during his rookie season. Reese famously put his arm around him and said, “You can hate a man for many reasons. Color is not one of them,” as a response to fans shouting racial slurs at Robinson.

18. On August 29, 1948, in a 12-7 win against the St. Louis Cardinals, Robinson “hit for the cycle” with a home run, a triple, a double, and then a single in the same game.

19. Robinson was the National League Batting and Stolen Bases Champion with a batting average of .342 and 37 stolen bases in 1949.

20. He was also a six time All-Star between the years 1949 to 1954.


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21. In 1949, Robinson was called to testify before the United States House of Representatives’ Committee on Un-American Activities (HUAC). He was subpoenaed because of comments made about him by prominent African-American actor Paul Robson. At first, Robinson was hesitant to testify, but then was ultimately compelled to do so because he feared not doing so would hurt his baseball career.

22. The National League’s Most Valuable Player Award went to Robinson in 1949, after his first appearance in the MLB All-Star Game. Robinson later took his team to the World Series, but would lose against the New York Yankees.

23. Jackie Robinson played himself in The Jackie Robinson Story, a biopic about his life released in 1950. Academy Award-nominated female actor Ruby Dee played Robinson’s wife Rachel “Rae” Isum Robinson.

24. During the off-season, Robinson went on a vaudeville and speaking tour of the South, where he would answer pre-set questions about his life. He actually made more money on these tours than he did on his contract with the Brooklyn Dodgers.

25. Robinson played in six World Series, but only won one in 1955 against the New York Yankees in a seven game series. Robinson didn’t play in 49 games that season and missed Game 7; Don Hoak played third base in Robinson’s place.

26. At 37, Robinson retired from Major League Baseball and the Brooklyn Dodgers in 1956 due to the visible effects of diabetes. Unbeknownst to the Brooklyn Dodgers, Robinson took a position with the American coffee company Chock Full O’ Nuts and agreed to quit baseball.

27. From 1957 to 1964, Jackie Robinson served as the vice president of personnel for Chock Full O’ Nuts coffee. He was the first African-American vice president of a major American corporation.

28. Robinson was a political independent, but had very conservative views on the Vietnam War. He also supported Richard Nixon in the 1960 Presidential election against John F. Kennedy, although Robinson admired Kennedy’s stance on civil rights once he was elected. He was later dismayed with Republicans for not supporting the Civil Rights Act of 1964 and soon after became a Democrat.

29. In 1962, Jackie Robinson was inducted in the Baseball Hall of Fame during his first year of eligibility. He was the first African American inducted at the Cooperstown Hall of Fame and Museum.

30. Jackie Robinson was always seen as a large figure in the Civil Rights Movement in the 1960s. Dr. Martin Luther King Jr. once said Robinson was “a legend and symbol in his own time” who “challenged the dark skies of intolerance and frustration.”

Jackie Robinson with his son at the Civil Rights March on Washington DC in 1963
Public Domain, Wikimedia Commons

31. In 1964, Robinson co-founded the Freedom National Bank—a black owned and operated bank in Harlem, New York—with businessman Dunbar McLaurin. Robinson was the commercial bank’s first Chairman of the Board. His wife later served as Chairman until 1990 when the bank closed.

32. Robinson was also the first African-American TV sports analyst. He broadcasted for ABC’s Major League Baseball Game of the Week telecasts in 1965. Robinson later worked as a part-time commentator for the Montreal Expos in 1972.

33. On June 4, 1972, the Dodgers retired Jackie Robinson’s uniform number 42, as well as Sandy Koufax’s number 32 and Roy Campanella’s number 39.

34. Robinson died of a heart attack on October 24, 1972 in Stamford, Connecticut, at age 53.

35. In 1973, Robinson’s widow, Rachel, started the Jackie Robinson Foundation, a non-profit organization that gives college scholarships to minorities. The Foundation also preserves the legacy of Jackie Robinson as a baseball player and a civil rights pioneer.

36. The house in Brooklyn, New York, where Jackie Robinson lived while he played for the Brooklyn Dodgers was declared a National Historical Landmark in 1976.

37. On March 1, 1981, American astronomer Schelte John “Bobby” Bus discovered an asteroid at the Siding Spring Observatory in New South Wales, Australia. Bus named the asteroid “4319 Jackierobinson,” after his favorite baseball player.

38. President Ronald Reagan posthumously awarded Jackie Robinson with the Presidential Medal of Freedom—the highest award given to a civilian for their contributions to world peace, cultural, or other significant public or private endeavors—on March 26, 1984.

39. You won't see any baseball players wearing the number 42: In 1997, Robinson’s number was retired throughout Major League Baseball. This was the first and only time a jersey number had been retired throughout an entire professional sports league.

40. In 1999, Robinson was added to the Major League Baseball All-Century Team along with Cal Ripken Jr., Joe DiMaggio, Willie Mays, and Ty Cobb. Fans chose the final selections from a list compiled of the 100 greatest Major League Baseball players from the past century.

41. April 15, 2004, became Jackie Robinson Day and all uniformed players in Major League Baseball were required to wear number 42 on their jerseys to honor Robinson’s memory and legacy to the sport.

42. More than 20 years after he received the Presidential Medal of Freedom, President George W. Bush also posthumously awarded Jackie Robinson with the Congressional Gold Medal—the highest honor the legislative branch can bestow on a civilian and must be co-sponsored by two-thirds of members in the House and the Senate—for his contributions to American history. He became the second baseball player to receive this accolade after Pittsburgh Pirates Right-Fielder Roberto Clemente in 1973.

An earlier version of this article appeared in 2013.

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10 Scientific Benefits of Being a Dog Owner
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The bickering between cat people and dog people is ongoing and vicious, but in the end, we're all better off for loving a pet. But if anyone tries to poo-poo your pooch, know that there are some scientific reasons that they're man's best friend.

1. YOU GET SICK LESS OFTEN.

Dog snuggling on a bed with its person.
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If cleaning commercials are to be believed, humanity is in the midst of a war against germs—and we shouldn't stop until every single one is dead. In reality, the amount of disinfecting we do is making us sicker; since our bodies are exposed to a less diverse mix of germs, our entire microbiome is messed up. Fortunately, dogs are covered in germs! Having a dog in the house means more diverse bacteria enters the home and gets inside the occupants (one study found "dog-related biodiversity" is especially high on pillowcases). In turn, people with dogs seem to get ill less frequently and less severely than people—especially children—with cats or no pets.

2. YOU'RE MORE RESISTANT TO ALLERGIES.

Child and mother playing with a dog on a bed.
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While dog dander can be a trigger for people with allergies, growing up in a house with a dog makes children less likely to develop allergies over the course of their lives. And the benefits can start during gestation; a 2017 study published in the journal Microbiome found that a bacterial exchange happened between women who lived with pets (largely dogs) during pregnancy and their children, regardless of type of birth or whether the child was breastfed, and even if the pet was not in the home after the birth of the child. Those children tested had two bacteria, Ruminococcus and Oscillospira, that reduce the risk of common allergies, asthma, and obesity, and they were less likely to develop eczema.

3. YOU'LL HAVE BETTER HEART HEALTH.

Woman doing yoga with her dog.
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Everything about owning a dog seems to lend itself to better heart health. Just the act of petting a dog lowers heart rate and blood pressure. A 2017 Chinese study found a link between dog ownership and reduced risk of coronary artery disease, while other studies show pet owners have slightly lower cholesterol and are more likely to survive a heart attack.

4. YOU GET MORE EXERCISE.

Person running in field with a dog.
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While other pets have positive effects on your health as well, dogs have the added benefit of needing to be walked and played with numerous times a day. This means that many dog owners are getting 30 minutes of exercise a day, lowering their risk of cardiovascular disease.

5. YOU'LL BE HAPPIER.

Woman cuddling her dog.
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Dog owners are less likely to suffer from depression than non-pet owners. Even for those people who are clinically depressed, having a pet to take care of can help them out of a depressive episode. Since taking care of a dog requires a routine and forces you to stay at least a little active, dog owners are more likely to interact with others and have an increased sense of well-being while tending to their pet. The interaction with and love received from a dog can also help people stay positive. Even the mere act of looking at your pet increases the amount of oxytocin, the "feel good" chemical, in the brain.

6. YOU HAVE A MORE ACTIVE SOCIAL LIFE.

Large bulldog licking a laughing man.
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Not only does dog ownership indirectly tell others that you're trustworthy, your trusty companion can help facilitate friendships and social networks. A 2015 study published in PLOS One found that dogs can be both the catalyst for sparking new relationships and also the means for keeping social networks thriving. One study even showed that those with dogs also had closer and more supportive relationships with the people in their lives.

7. YOUR DOG MIGHT BE A CANCER DETECTOR.

Man high-fiving his dog.
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Your dog could save your life one day: It seems that our canine friends have the ability to smell cancer in the human body. Stories abound of owners whose dogs kept sniffing or licking a mole or lump on their body so they got it checked out, discovering it was cancerous. The anecdotal evidence has been backed up by scientific studies, and some dogs are now trained to detect cancer.

8. YOU'LL BE LESS STRESSED AT WORK.

Woman working on a computer while petting a dog.
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The benefits of bringing a dog to work are so increasingly obvious that more companies are catching on. Studies show that people who interact with a pet while working have lower stress levels throughout the day, while people who do not bring a pet see their stress levels increase over time. Dogs in the office also lead to people taking more breaks, to play with or walk the dog, which makes them more energized when they return to work. This, in turn, has been shown to lead to much greater productivity and job satisfaction.

9. YOU CAN FIND OUT MORE ABOUT YOUR PERSONALITY.

Man running in surf with dog.
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The kind of dog you have says a lot about your personality. A study in England found a very clear correlation between people's personalities and what type of dogs they owned; for example, people who owned toy dogs tended to be more intelligent, while owners of utility dogs like Dalmatians and bulldogs were the most conscientious. Other studies have found that dog owners in general are more outgoing and friendly than cat owners.

10. YOUR KIDS WILL BE MORE EMPATHETIC.

A young boy having fun with his dog.
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Though one 2003 study found that there was no link between pet ownership and empathy in a group of children, a 2017 study of 1000 7- to 12-year-olds found that pet attachment of any kind encouraged compassion and positive attitudes toward animals, which promoted better well-being for both the child and the pet. Children with dogs scored the highest for pet attachment, and the study notes that "dogs may help children to regulate their emotions because they can trigger and respond to a child's attachment related behavior." And, of course, only one pet will happily play fetch with a toddler.

A version of this story originally ran in 2015.

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16 Prehistoric Creatures You’ll See In Jurassic World: Fallen Kingdom
Chris Pratt meets the vicious T. rex in Jurassic World: Fallen Kingdom (2018)
Chris Pratt meets the vicious T. rex in Jurassic World: Fallen Kingdom (2018)
Universal Pictures and Amblin Entertainment, Inc. and Legendary Pictures Productions, LLC.

The sequel to 2015’s Jurassic World ups the ante with a huge roster of dinosaurs, pterosaurs, and marine reptiles. While some are familiar favorites (see: T. rex), others have never been seen in a major motion picture before. Pull off your nostalgia goggles and let’s take a look at what modern science has to say about the long-gone animals of Jurassic World: Fallen Kingdom.

1. TYRANNOSAURUS

Lived: 68 to 66 million years ago in North America

Diet: Carnivore

Maximum Length: 40 feet

Name Means: “Tyrant lizard”

Apparently, the most popular dinosaur of all time wasn’t above cannibalism: Multiple Tyrannosaurus rex bones have bite marks on them that match the teeth of other tyrannosaurid species. Debate has arisen over the issue of T. rex plumage. University of Alberta paleontologist Scott Persons recently compared tiny skin impressions left behind by Tyrannosaurus and its close cousins Gorgosaurus, Daspletosaurus, and Tarbosaurus. These reveal that the dinos had pebbly scales, but the samples contain no evidence of feathers. Keep in mind though that the skin impressions only represent small patches of the dinosaurs’ tails, necks, abdomens, and pelvises—so Tyrannosaurus might’ve had feathers elsewhere on its body. For the record, Persons thinks the giant carnivore would still look “pretty cool and plenty scary” with a little fuzz. “[Nobody] ever complained that tigers weren’t scary, and they’re fluffy,” he said.

2. APATOSAURUS

Artistic interpretation of an individual of A. louisae arching its neck down to drink
Public Domain, Wikimedia Commons

Lived: 155 to 150 million years ago in North America

Diet: Herbivore.

Maximum length: 80 feet

Name means: “Deceptive lizard”

In 1879, an unidentified sauropod (a long-necked dinosaur) was found in Wyoming. At first, this creature was given the name Brontosaurus excelsus but in 1903, paleontologist Elmer Riggs rechristened it as Apatosaurus excelsus (the Apatosaurus had been described before the Brontosaurus, so the name had precedence). A few scientists now think the Brontosaurus and Apatosarus actually are distinct and the much better-known name ought to be reinstated for that particular group, but others disagree. Regardless, Apatosaurus was pretty awesome. Some of its bones were pneumatic and the body contained a number of air sacs. Such traits would’ve made the big plant-eater very lightweight for an animal of its size. Apatosaurus may have also been able to break the sound barrier by cracking its sinuous tail like a bullwhip.

3. TRICERATOPS

Lived: 68 to 66 million years ago in North America

Diet: Herbivore

Maximum length: 29 feet

Name means: “Three-horned face”

Give credit where it’s due: Look at the baby Triceratops in Fallen Kingdom and you may notice that the horns above its eyes curve backward ever so slightly. This is scientifically accurate. The brow horns of Triceratops newborns were tiny bumps which bent backward during the adolescent years. Then they changed course and bowed forward while the animals matured. Puncture wounds and lesions on the skulls of adult Triceratops tell us these animals locked horns in head-to-head combat. Triceratops was constantly replacing its teeth, which were arranged in tight clusters and most likely used to shear through fibrous vegetation.

4. SINOCERATOPS

Lived: 75 to 66 million years ago in China

Diet: Herbivore

Maximum length: 19 feet

Name means: “Chinese horned face”

A newcomer to the Jurassic Park films, Sinoceratops first came to light during a 2008 fossil-hunting excursion into China’s Shandong Province. It belongs to the same family as Triceratops and was the first member of this group to be found in Chinese rock. Small, forward-bending horns lined the top of its frill, which was proportionally smaller than that of Triceratops. A single cone-shaped horn sat over the nostrils.

5. ALLOSAURUS

Lived: 155.7 to 150 million years ago in North America and Portugal and possibly elsewhere

Diet: Carnivore

Maximum length: 28 (or possibly 35) feet

Name means: “Different lizard”

In one of the trailers for Fallen Kingdom, a running Allosaurus falls flat on its face. The dinosaur was no stranger to injury in real life. Cracked ribs, broken arms, and badly-infected toes are just a few of the medical maladies that Allosaurus skeletons have been preserved with. Selected as Utah’s official state fossil in 1988, Allosaurus is one of the most commonly found predatory dinos in the American west. Strong neck muscles may have allowed the carnivore to disembowel prey by pulling its head backward in a falcon-esque tugging motion. And here’s something we’d really like to see on the silver screen: According to a 2015 study, Allosaurus could possibly open its jaws at a nightmarish 92-degree angle.

6. MOSASAURUS

Lived: 70 to 66 million years ago in Europe and North America

Diet: Carnivore

Maximum length: 56 feet

Name means: “Lizard of the Meuse River” (It was first discovered along this European river in 1764.)

Mosasaurus wasn’t a dinosaur; it’s more closely related to snakes and monitor lizards than it is to any of the other creatures you’ll read about here. Both Jurassic World flicks show the marine reptile leaping high out of the water to snag unwary prey. According to mosasaur expert Michael J. Everhart though, these animals didn’t have the tail strength or speed to pull off such an athletic feat. Mosasaurus is the most famous member (and the namesake genus) of the mosasaur superfamily. Late in the age of dinosaurs, these were some of the ocean’s major predators. They probably swam like gigantic crocodiles, keeping their flippers pressed against the body. Fossil evidence tells us that mosasaurs gave birth to live young at sea and at least some of them had vertically-fluked tails.

7. PTERANODON

Lived: 88 to 80.5 million years ago in central North America

Diet: Carnivore (probable fishing specialist)

Maximum wingspan: 20 feet (or possibly 24 feet)

Name means: “Toothless wing”

Here’s another non-dinosaur for you. Good old Pteranodon was a kind of North American pterosaur. What’s that, you ask? Pterosaurs were flying reptiles that patrolled the skies from 228 to 66 million years ago. Long before birds or bats took to the air, pterosaurs became the first vertebrate animals to ever achieve powered flight. The good people of Kansas designated Pteranodon itself as one of their official state fossils in 2014. Back in this animal’s heyday, there was a vast inland sea which covered most of the Great Plains, splitting North America in two. Pteranodon may have behaved like a modern albatross, using its narrow wings to soar for vast distances on air currents above the ocean waves. The creatures were apparently keen on seafood: Pteranodon skeletons are sometimes found with masses of fish bones in their throats and stomachs. We may never know how they captured prey, but one idea can be dismissed outright: Not a single known pterosaur had opposable toes, so Pteranodon couldn’t have grabbed things with its feet like the genetically-engineered flyers in Jurassic World do.

8. CARNOTAURUS

Bryce Dallas Howard and Justice Smith are trapped by the Carnotaurus in 'Jurassic World: Fallen Kingdom' (2018)
Universal Studios and Amblin Entertainment, Inc. and Legendary Pictures Productions, LLC.

Lived: 72 to 69 million years ago in Argentina

Diet: Carnivore

Maximum length: 25 feet

Name means: “Meat-eating bull"

Carnotaurus didn’t show up in the first four Jurassic Park movies, but Michael Crichton wrote the horned creature into his 1995 novel The Lost World. The book depicts Carnotaurus as a nocturnal hunter that can change colors like an overgrown cuttlefish. There’s no reason to put any stock in this idea, but the real Carnotaurus was not without its quirky attributes—including its forelimbs. While T. rex gets a lot of flack for its meager arms, those of Carnotaurus are proportionately smaller, and the Argentine dino didn’t even have any wrist bones. On the flip side, Carnotaurus’s strong legs and powerful tail would’ve made it a gifted sprinter. Skin impressions reveal that its back, neck, and tail were studded with bony knobs, much like the ones Carnotaurus shows off in Fallen Kingdom.

9. GALLIMIMUS

Lived: 70 million years ago in Mongolia

Diet: Probable omnivore

Maximum length: 20 feet

Name means: “Chicken mimic”

Gallimimus belongs to an ostrich-like family of dinosaurs known as the ornithomimids. Though it lacks plumage in the Jurassic movies, real ornithomimids were covered in fuzzy down as youngsters and the adults grew long feathers on their arms. Gallimimus and its brethren couldn’t fly, but their showy, wing-like forelimbs could’ve been used to help them attract mates. Ornithomimids compensated for their lack of teeth by swallowing rocks, which ground up food in the stomach. Exactly what they ate is unclear, though most paleontologists think the ostrich mimics were either omnivorous or herbivorous.

10. BRACHIOSAURUS

Lived: 155 to 140 million years ago in North America

Diet: Herbivore

Maximum length: 72 feet

Name means: “Arm lizard”

Even though it’s poorly represented in the fossil record, Brachiosaurus is well-known to the general public. This is largely due to its breakout role in the first Jurassic Park movie. The Brachiosaurus in that classic film hold their elongated necks in an almost vertical position, and this depiction might not be too far off. A 2010 biomechanical analysis argued that browsing on treetops would’ve been a more energy-efficient option for Brachiosaurus-like sauropods than holding their necks horizontally and eating ground-level plants. It’s interesting to think about the behemoth’s cardiovascular system: In order to pump blood up that lengthy neck and into the head, Brachiosaurus may have required a gigantic heart weighing in the neighborhood of 880 pounds.

11. ANKYLOSAURUS

Lived: 68 to 66 million years ago in North America

Diet: Herbivore

Maximum length: 21 feet

Name means: “Curved lizard”

We know this formidable animal had a backside covered in bony plates; yet because no one’s ever found a complete Ankylosaurus skeleton, scientists disagree about how the armor was arranged. The 19-inch-wide club on its tail was probably a weapon. Using CT scans and anatomical measurements, a Canadian research team estimated that a large Ankylosaurus club could strike its target with enough force to break bones. Evolution made some of the tail vertebrae in these dinosaurs stiff and inflexible so they could support their heavy clubs. A hammer needs its handle after all.

12. STYGIMOLOCH

Lived: 68 to 66 million years ago in North America

Diet: Probable herbivore

Maximum length: 10 feet

Name means: “Styx devil”

It’s kind of ironic that Stygimoloch is mentioned by name in Fallen Kingdom’s promo videos. Paleontologist John R. “Jack” Horner has worked as a consultant for all five Jurassic Park films. He thinks that Stygimoloch is nothing more than the juvenile version of the thick-headed dinosaur Pachycephalosaurus, which lived at the same time and place. (You may remember the latter’s cameo in 1997's The Lost World: Jurassic Park.) This would render the name Stygimoloch invalid. Horner’s argument is supported by the trademark feature of both dinos: the iconic domes on the top of their craniums. Stygimoloch’s skull bones were not fully fused together, suggesting the animal had a lot of growing to do. CT scans have also shown that Stygimoloch’s dome was significantly thinner than that of Pachycephalosaurus. Perhaps these dinos used their special skulls to flank each other—or maybe the thick noggins were designed for heavy-duty headbutts. For his part, Horner has proposed that these were used for identification.

13. STEGOSAURUS

Mounted skeleton of Stegosaurus stenops in right lateral view at the Natural History Museum, London.
Susannah Maidment et al. & Natural History Museum, London, CC BY 4.0, Wikimedia Commons

Lived: 155 to 150 million years ago in North America and Portugal

Diet: Herbivore

Maximum length: 23 feet

Name means: “Roof lizard”

Nobody knows what to make of the bony plates on Stegosaurus’s back. If self-defense was their purpose, why do they project upward from the spine, leaving the flanks of this vegetarian wide open? And why do the plates of other spiky-tailed dinosaurs in its family have radically different shapes? One hypothesis is that these bizarre accessories were used to attract mates—much like the peacock’s gaudy tail feathers. Maybe they also helped the small-headed herbivores recognize other members of their own kind from afar. The quartet of spikes on Stegosaurus’s tail were almost certainly used to ward off attackers. Live Stegosaurus got plenty of mileage out of these weapons: One survey, which compared 51 individual spikes, reported that just under 10 percent had been broken and re-healed at the tip.

14. COMPSOGNATHUS

Lived: 150 million years ago in Germany and France

Diet: Carnivore

Maximum length: Four feet

Name means: “Elegant jaw”

Only two skeletons of this dinosaur have ever been discovered, both of which were found with the remains of tiny lizards tucked inside their rib cages. That’s a pretty far cry from the scene in The Lost World: Jurassic Park where a swarm of “Compies” gobble up the man who’s been tormenting them with a cattle prod. But we digress. Named in 1859, Compsognathus used to be the smallest type of non-avian dinosaur known to science. It no longer retains this title, as the creature would’ve dwarfed some more recently-discovered dinos like the 15-inch Mongolian Parvicursor.

15. BARYONYX

Bryce Dallas Howard and Justice Smith encounter the Baryonyx in 'Jurassic World: Fallen Kingdom' (2018)
Universal Pictures and Amblin Entertainment, Inc. and Legendary Pictures Productions, LLC.

Lived: 130-125 million years ago in England, Spain, and Portugal

Diet: Carnivore

Maximum length: 25 feet

Name means: “Heavy claw”

Sail-backed Spinosaurus was the main villain in 2001's Jurassic Park III—a casting choice that irked plenty of fans. Baryonyx was a close relative of this beast who now joins Jurassic World: Fallen Kingdom’s Mesozoic ensemble. Preserved stomach contents have shown that Baryonyx ate fish as well as the herbivorous dinosaur Iguanodon. On each hand, Baryonyx had a 12-inch hooked claw that served an unknown purpose. (Artists like to imagine it as a fishing tool.) The animal’s conical teeth look well-equipped for grabbing hold of slippery prey. Despite the narrowness of its snout, Baryonyx’s jaws were able to withstand a great deal of bending and torsion.

16. VELOCIRAPTOR

Chris Pratt with a baby Velociraptor in 'Jurassic World: Fallen Kingdom' (2018)
Universal Pictures and Amblin Entertainment, Inc. and Legendary Pictures Productions, LLC.

Lived: 85 to 70 million years ago in Mongolia and China

Diet: Carnivore

Maximum length: 7 feet

Name means: “Swift thief”

Velociraptor stood less than two feet tall at the hip and weighed around 55 pounds. Michael Crichton’s description of the animal was inspired by its bigger cousin, Deinonychus. Even that dinosaur was smaller than the man-sized predators of Jurassic Park, though. Both Velociraptor and Deinonychus were dromaeosaurs: bird-like carnivores with bony rods in their tails and sickle-shaped toe claws. (When we say “bird-like,” we mean it: Dromaeosaurs are thought to be some of our feathered friends’ closest relatives. Many had plumage; Velociraptor itself came with sizable feathers on each arm.)

The notion that they hunted in packs can be traced back to the maverick paleontologist John Ostrom of Yale. During the 1960s, he worked at a Montana dig site where four Deinonychus were found around the body of a larger herbivore named Tenontosaurus. Ostrom’s belief that dromaeosaurs hunted in organized groups gained traction with scientists and novelists alike. A newer interpretation of the data is that the dinos lived alone and at most occasionally came together to mob vulnerable plant-eaters.

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