Birds click their bills with great rhythm -- but why?
Skin can sometimes see, as new research on an octopus shows.
Dinosaurs are now known to have lived in 37 U.S. states, with Washington state being the latest to lay claim to a dino.
The mother of all snakes was nocturnal, sported little legs, and lived during the height of the Dinosaur Age.
A big round fish that some have likened to a swimming flat beach ball has just been identified as the first known fully warm-blooded fish.
Flies experience fear similar to the way that we do, and even need to calm down after an angry human or other threat scares them.
One of the best escape moves in nature is performed by the trap-jaw ant, which uses its jaws to hurl itself backward--performing multiple backflips in the process.
A viral video showing Yellowstone tourists running from bears provides a good lesson on what not to do if you are approached by a bear.
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