We Finally Have an Answer as to Why The T-Rex’s Arms Are So Short

And it coincides with the creature's massive bite.

Transcript

00:00For such a big guy, the T-Rex's arms are comically short, but have you ever wondered why?

00:09Well, researchers from UC Berkeley may have a theory, and it's almost as funny as the T-Rex's arms.

00:14Author of the paper, Integrated Biologist Kevin Padian, believes it could have to do with accidental bites.

00:19The T-Rex's jaw is sort of its defining feature, but its size may have meant it could have been a danger to both friend and foe.

00:26With the study suggesting the arms were short to protect them from accidental bites from family and friends.

00:31Here's how Padian describes it in the new study.

00:33What if several adult tyrannosaurs converge on a carcass?

00:36You have a bunch of massive skulls with incredibly powerful jaws and teeth, ripping and chomping down flesh and bone right next to you.

00:42What if your friend there thinks you're getting a little too close?

00:44They might warn you away by severing your arm.

00:46So it became evolutionarily beneficial to keep your digits away from your food, where hundreds of foot-long teeth were chowing down.

00:53Padian says the trick now is to find some evidence that might support this hypothesis.

00:57Saying T-Rex fossil records could reveal less bite marks on its tiny arms versus the rest of its massive body.

01:03Having a non-teleptive body.

01:07At the same time.

01:08Finally, we have Vitamin C.

01:09Well, let's catch up with.

01:10You can put your heart on your head, your heart, your heart, your mind, your heart.

01:12By now, my eyes.

01:13Once again, my heart was healed.

01:15They might have a mental health, your self-pository body.

01:16At the same time.

01:17But then I think our heart was in a moment with my heart and my heart.

01:18I'm feeling tired of the bleep.

01:19I'm feeling tired of Previous body on your heart.

01:20I am feeling tired of the little body.

01:21Please stop playing.

01:22If I am feeling tired of the big part.

01:23You can see that.

01:24People can see you out on your heart.

01:25Ivory body.

01:26I am feeling tired of this.