To test if struggling bison or bouncing kangaroos put too much strain on Smilodon or Thylacosmilus’s teeth, Pollock and colleagues made 3D-printed ... selection shapes animals to perform ...

You can't feed a lion grass!! He's got the wrong sort of teeth! Animals which eat plants have teeth like this. They're shaped to squash and grind. Meat eating animals have teeth like this ...

You can't feed a lion grass!! He's got the wrong sort of teeth! Animals which eat plants have teeth like this. They're shaped to squash and grind. Meat eating animals have teeth like this ...