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 ...

The continent’s largest freshwater fish, native to Eastern Europe, is an invasive species that threatens native fish already in decline. Wels catfish, which are native to Eastern Europe, can grow up ...

Catfish that eat pigeons, huge groupers that eat sharks and saber-toothed Payara that spear their prey with six-inch long fangs are featured this year in the Nat Geo Wild's Monster Fish show starring ...

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