Why does a Caribbean angelfish sometimes resemble its Indo-Pacific cousin, even though they have never lived in the same ocean? Why do coral reefs harbor such a wide range of stripes, spots and ...

Your sedentary lap cat may not seem to share many similarities with its fierce relatives prowling the African savanna. But Stanford Medicine researchers have discovered a specific gene that drives ...

Steve Nix is a member of the Society of American Foresters and a former forest resources analyst for the state of Alabama. Leaf shapes play an important role in tree identification, providing key ...