A pediatric dentist and an anthropologist explain how baby teeth and adult teeth help humans chomp their food over a long ...

Killer whales, also known as orcas, are easily recognized by their stunning black and white appearance. These huge animals can reach up to 26 feet long and are actually the largest members of the ...

In the history of teeth, perhaps no tooth is as famous as the saber tooth. These long, blade-like canines seem almost perfectly optimized to kill prey. They've evolved at least five times in mammals, ...