Common clownfish (Amphiprion ocellaris) live in anemones and can be very territorial. Reinhard Dirscherlullstein bild via Getty Images ...

More of ocellaris clownfish (Amphiprion ocellaris), also known as the false percula clownfish or common clownfish with its host anemone, giant carpet anemone (Stichodactlya gigantea), on Miyako ...

The clownfish that Moore raised in warmer water also had faster metabolisms, which the scientists determined by measuring how much oxygen the clownfish consumed in a tiny swim tunnel.

Researchers found common clownfish — with three stripes — pursued and nipped their own kind and clownfish with two stripes. But they did not mind those with one stripe or none.

Common clownfish don’t like sharing their anemone with visitors of the same species, although they will tolerate other clownfish species, so how do they tell friend from foe? In a new ...

By Keith Anthony Fabro Clownfish are known for their remarkable ability to change sex to survive. Turns out, one species, clown anemonefish (Amphiprion percula), popularized in the Pixar hit movie ...

Heat waves are becoming more common and intense underwater due to climate change. Warmer water temperatures can bleach sea anemones that clownfish call home, forcing them to adapt to stay alive.

Clownfish, a small orange and white species made famous by the “Finding Nemo” movies, have been found to shrink in order to boost their chances of surviving marine heat waves, according to a ...