Before frogs were cute, Beelzebufo ampinga lurked in Madagascar’s shadows with a skull built for bone-crunching — and possibly dinosaur-snacking.

Many other frog species camouflage themselves in the wild, but the poison dart frog uses its brightly colored skin to warn predators that it is unfit to eat. The frog's skin secretes a dangerous ...

Never try to live with cavity pain. Left untreated, the decay can spread to the entire tooth and start to affect adjacent teeth as well. Until you can see a dentist, there are things you can do at ...