New research reveals signs of highly sensitive color vision in fish that live in the abyss beyond sunlight's reach An international team of researchers discovered a previously unknown visual system ...

Aggressive little male fish from Indonesia turn black when angry to show their dominance, scientists discover. When you purchase through links on our site, we may earn an affiliate commission. Here’s ...

Deep-diving fish have a problem: The only light that penetrates their watery environment is blue and green hardly enough of a palette for flashy color patterns. Now, a new study reveals these fishes' ...