An extinct marsupial hunter only the size of a fox may have hunted prey larger than itself.
Genetic fingerprints could finally help researchers keep tabs on he poorly understood whale.
Not taking actions to help reduce the national rise in bat mortality could cost the United States billions of dollars.
The finding adds new evidence to the debate of whether they were cold or warm-blooded.
World's Largest Known Bear Identified. Learn more about the World's Largest Known Bear Identified in this article.