To test if struggling bison or bouncing kangaroos put too much strain on Smilodon or Thylacosmilus’s teeth, Pollock and colleagues made 3D-printed steel replicas of teeth from 25 saber-toothed ...

Visitors are told to "show your teeth and make eye contact" if confronted by the dangerous animal. As opposed to both bears and cougars, bison are a lot more present during the winter months ...