Raccoons join hornets, ibis and some kinds of algae as invasive species putting Europe’s biodiversity at risk.

Blue-ringed octopuses carry a killer concoction called tetrodotoxin (TTX), a potent neurotoxin that can paralyze living ...

Fish use nearly twice as much energy to hover as to rest, revealing that staying still in water is anything but effortless.

A dangerous and deadly fish species is rapidly spreading across the Mediterranean, posing a major threat to local ecosystems ...

We're starting with the fish that have temperaments that make them unlikely to get on with other species of tankmates. In ...