Dave Hone

Where can I say it?

There you see there's a little mark.

That's a ligamentous pit.

And so what you can imagine is if you're trying to hold onto something and something's wriggling, you want grip.

And there's a risk that you just like dislocate your fingers.

So we have ligaments that hold bone to bone.

And if you just put it flat to flat surface area, there's only so much you can attach.

Whereas if you turn that into a little hemispherical dip, you get a lot more surface area for your area, if that makes sense.

So if you have a really big ligamentous pit, it means there's a really big ligament.

which means your fingers are really strong and they're really resistant to being wiggled around and pulled as if, you know, you've grabbed something that doesn't want you to kill it.

Well, T-Rex has probably the smallest ligamentous pits of any Tyrannosaur.

So that kind of suggests it's not doing very much.

And again, when you look at the claws proportionally, they're not that big and they're not that curved.

So even though it looks like quite a wicked thing to us, remember, put this on a seven-ton animal whose individual teeth are the size of entire fingers.

Suddenly that arm doesn't look like it's doing very much.

What about the feet?

So massive.

Again, not surprisingly, you're supporting a colossal amount of weight, but they have this...

beautiful adaptation in the foot.

So the equivalent bones in the foot, the metatarsals.