In rivers that once held a balanced mix of native fish, a giant predator now dominates so completely that it has started ...

Have you ever seen a fish eat a bird? Probably not, but that’s exactly what the Wels catfish is capable of doing. This video from BBC Earth shows a Wels catfish eating a pigeon whole. This astonishing ...

In the Tarn River, in the French town of Albi, pigeons gather to wash off dirt and dust. But as the oils from their feathers wash downstream, a huge predator senses the birds. They feel their way 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 ...

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, ...