Scientists believe humans may be able to regrow lost teeth at some point in the next five years. Not only that, they also say ...

In their research, Yelick and her team took soft living tissue from both human and pig teeth, combined them in a lab, and then transplanted it into a mini pig's mouth. They obtained the materials ...

grew a combination of pig and human tooth cells in pieces of pig teeth to create human-like teeth in the animal’s mouth. They achieved this by taking cells from human dental pulp and mixing them ...

This signals aggression or agitation. If your guinea pig’s teeth chattering is accompanied by baring of teeth, it is your pet’s way of telling another guinea pig to stay back or back off.