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' ...

Cephalopods such as octopuses, cuttlefish and squid can instantly change their body colour using proteins called reflectins. A study shows that these proteins originated in bacteria that live in ...

Blythe Copeland is a writer, editor, and blogger who began working with Treehugger in 2008. There are more than 1,200 species of sea anemone in the ocean and these creatures are responsible for some ...

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. Subscribe to read this story ad-free ...