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T. rex
John

24s處為see...

24s~27s的女聲不用寫

以音頻內(nèi)容為準

英式拼寫

Actually if I bring a bone over, we can superimpose these two. It's got one big muscle attachment right here and the dinosaurs have a muscle scar just like this. It appears in the first bipedal dinosaurs, this scar on the outside of the fibula and it is not present in earlier animals. So this is another link between dinosaurs and birds.
So I must look for that the next time I see...
Yeah, you can see that in T. rex. T. rexes have a huge one of those, a massive scar like this big.
By estimating the muscle sizes of extinct animals and inputting them into computer models, John is able to get an incredible new insight into how dinosaurs actually moved.
It's basically running a simulation. The computer's figuring out what is the best way to use these muscles, given what we've put in to raise the body up. We're not animating it. We're not saying, "Do it this way." We are just giving it some basic rules of biology. This is what kinds of things you should be trying to do overall and let it find the best solution.

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