Tomato clownfish perform a dramatic underwater wardrobe change based on the social dynamics of their environment ...

A UK-designed robotic fish called Gilbert can remove microplastics from water and one day may be able to power itself.

Fishing duo Cole & Jay head to the water on a special mission to catch a behemoth new pet fish for their young baby's aquarium.

Tomato clownfish, in response to an unpredictable world, appear capable of adjusting when they lose their stripes based on cues from other fish and their habitat, a new study in PLOS Biology finds.