【Watch Ava Online】

Spoilers ahead,Watch Ava Online but they're very small, like Compsognathus.

Chris Pratt has the abs, smile, and square jaw. But the real hero of Jurassic World: Fallen Kingdom is Stiggy the Stygimoloch.

Yes, the adorable dinosaur headbutted its way into our hearts by saving our heroes and kicking villain butt, and yes, Stygimolochwas a real creature.

SEE ALSO: More is more in 'Jurassic World: Fallen Kingdom'

The herbivore had a dome on its head, probably for defense against predators and battling each other for mates. Stygimoloch is also an excellent name for a metal band. (Itroughly translates to "Styx demon.")

Another reason Stygimolochwas so badass: It had big horns on its head, which were probably very useful for not getting eaten.

"If you're a T. rexthat wants to bite this guy's head off, you're going to do it with a certain amount of risk," said paleontologist Pete Larson, president of the Black Hills Institute of Geological Research.

It was relatively small, about 3 feet tall at the hip and 7 to 10 feet long. Discovered in North and South Dakota, Montana, Wyoming, Alberta, and Saskatchewan, it lived alongside some of the greats — Tyrannosaurus rex, Triceratops, Ornithomimus, and Dakotaraptor — during the late Cretaceous Period. So late, in fact, that it was around during the extinction event that killed off the dinosaurs.

Mashable Light Speed Want more out-of-this world tech, space and science stories? Sign up for Mashable's weekly Light Speed newsletter. By clicking Sign Me Up, you confirm you are 16+ and agree to our Terms of Use and Privacy Policy. Thanks for signing up!

"When the asteroid hit, some of these guys were around to look up at the sky and say, 'Oh crap, what's that?'" joked Larson. (Luckily, Stiggy only had to deal with an active volcano.)

Some paleontologists, including Jack Horner, who served as an adviser to the Jurassic Parkfilms, have theorized Stygimolochwas just a juvenilePachycephalosaurus. Larson disagrees, claiming the number and orientation of their horns are too different.

This Tweet is currently unavailable. It might be loading or has been removed.

OK, get ready for a very minimal spoiler, if you can spoil a movie where a raptor jumps away from an explosion like Bruce Willis in Die Hard.

Remember that scene where Stiggy smashes through a brick wall and prison door to free Pratt and Bryce Dallas Howard from their cell?

Via Giphy

It seemed pretty ludicrous. And it was, as far as plot goes. Buuut, actually, said Larson, it might be possible. The dinosaur's thick dome -- made of porous bone -- was a very good shock absorber, so a 200-pound Stygimoloch running full speed could have "potentially" broken down a brick wall. Still, scientists haven't studied the matter, so we can't know for sure.

Not that it should matter. I mean, compared to some other scenes in the movie, the Stiggy jailbreak was very realistic. (Let's not even talk about that blood transfusion.)

Larson said his colleagues often criticize the science in the Jurassic Parkand Jurassic Worldmovies. He doesn't take them so seriously.

"It's a movie," he said. "These things are genetically engineered, they're not necessarily what they were when they were living [in the Cretaceous Period]. Just enjoy it, have fun, and watch these dinosaurs move and do cool things."

Yeah, cool things like smash stuff. Long live Stiggy.

---

Featured Video For You

---

Jeff Goldblum is back in the amazing 'Jurassic World Evolution' video game

---

• Social Good
• Deals
• Entertainment
• Science
• Tech
• Games
• Life
• Digital Culture

• Dyson V8 Plus cordless vacuum: $120 off at Amazon
• Viral hashtag uncovers stories of everyday racism people face in Australia
• Sharon Stone gets on Bumble, gets blocked after users report her profile as fake
• 'Friends' is off Netflix. Here's where you can still watch.
• NYT Strands hints, answers for May 18
• The internet casts 'Trump
• Woody Harrelson has apparently quit smoking weed
• Brace yourselves: April the giraffe's calf is now reportedly 'sticking out'
• Commissioning Misleading Core i9
• 10 video games we can't wait to play in 2020

• Xbox and Bethesda dropped a *ton* of trailers at their E3 kickoff
• Here's what Facebook's Australian users talked about the most in 2017
• The internet is ablaze with 'sex is cool' memes
• NASA's new solar eclipse photos rule
• Aspiring poet's rejection letter from 1928 is delightfully brutal
• Marriage equality has finally become law in Australia, at last
• Embrace the dark side with these 'Star Wars' themed sex toys
• 5 takeaways from 5 new anti
• Time Person of the Year poll honors the women who broke the silence with #MeToo
• YouTube says it will no longer let Trump (or any politician) take over its homepage

• Best Amazon Fire TV Cube deal: Save $30 at Amazon
• Viral hashtag uncovers stories of everyday racism people face in Australia
• Underwater scooter can dive 131 feet below the surface
• 'Friends' is off Netflix. Here's where you can still watch.
• 'Mario Kart World' Nintendo Direct: 3 takeaways
• Brace yourselves: April the giraffe's calf is now reportedly 'sticking out'
• 20 movies and shows to stream with your New Year's Day hangover
• Google's AI is better at breast cancer screening than human experts, study claims
• Ireland fines TikTok $600 million for sharing user data with China
• The horniest moments of 2019

• Turtle Beach Recon 50P gaming headset deal: 28% off
• Dell fixed the most annoying thing about its XPS 13 laptop
• Google Pixel 4a could have a hole
• 2019 was the year of 'yikes'
• Against Fear
• Woman who fought off bathroom attacker has strong message for anti
• Australia's raging bushfires are smothering New Zealand with smoke
• Brace yourselves: April the giraffe's calf is now reportedly 'sticking out'
• Apple is actively looking at AI search for Safari
• The most life