The Valley of the T-Rex

00:00:02 For over a hundred years, we've lived with the image.

00:03:27 I think it's an interesting idea.

00:05:47 There's an awful lot of stuff we know about them as fact.

00:07:28 there was actually a little sandstone sitting over the top of this.

00:09:12 With claws like meat hooks, a massive jaw bristling with deadly teeth

00:11:10 When predatory animals fight, they have to be able to jump around.

00:12:50 Is this the fate of the tyrant lizard king?

00:14:57 Violent storms and floods deposited layers of rock and sediment

00:16:54 As the crew moves slowly down

00:19:04 They also have laterally compressed teeth, very sharp, serrated.

00:21:41 Now I had little toys.

00:24:05 Basically what we are looking at here is a partial skeleton of

00:25:59 Everything we find here, everything we uncover, may or may not be a key.

00:28:00 This right here is actually the depression that

00:30:02 So that's the trick now, is to try and please everybody.

00:32:16 Make a jacket too thick and you'll need a crane to move it.

00:34:10 it's kind of fun to dig up something like this that's in kind of

00:36:01 And so, T Rex was actually feeding

00:37:59 and those puncture marks just so happen to be the right size

00:39:54 but if you don't get it out, you just had fun is all.

00:42:00 This juvenile Daspletosaurus is probably the best example of

00:43:48 As T Rex is evolving, T Rex is losing its ability to run

00:45:55 And after an hour out, we picked up a few cool bones.

01:09:09 was discovered in Hell Creek