This unusual behavior is not observed in Wels catfish populations elsewhere and is believed to be a learned adaptation. Due to limited food sources, the catfish became desperate enough to try hunting ...

In 1878, amateur naturalist Albert Farn wrote to Charles Darwin with some observations about the Annulet moth, which seemed to change colors to suit the differing landscapes of Britain. (Darwin never ...

In Southwestern France, a group of European catfish — which can get between 1 and 1.5 meters long — have taught themselves the art of fowl hunting to satisfy their discerning paletes. As unsuspecting ...

There you are, hanging with the other pigeons. It's a sunny day. Tranquil. You are taking a bird bath along a river's edge, when suddenly, leaping... In science, categories matter: phylum, family, ...

Evolutionary biologist Menno Schilthuizen's new book is a breezy (sometimes too breezy) account of the ways animals have adapted to city life, and... In 1878, amateur naturalist Albert Farn wrote to ...

In science, categories matter: phylum, family, class, species, solid, liquid, endo-, exo-, we analyze by creating groups, by making clean distinctions. Nature, on the ...