Researchers directed electric current to activate targeted facial muscles and then asked study participants how they felt ...

Heidi Klum recently took a trip to visit her oldest son Henry at college, treating fans to a fun look at some intimate family time over the November 17 weekend. In an Instagram carousel, the longtime ...

Anglerfish have invisible fangs, narwhal tusks are extra-long canines, and more facts from the weird and wonderful study of ...