Reef fish in different oceans often develop similar color patterns because evolution explores the same set of biological possibilities.

A saltwater aquarium is an exotic and striking addition to the home. But more than a striking piece of furniture, it’s a living habitat that is both enthralling and engaging thanks to the vibrant ...

By Will Dunham WASHINGTON, Feb 18 (Reuters) - For more than a century, biology textbooks have stated that vision among vertebrates - people included - is built from two clearly defined cell types: ...

SAN DIEGO (KSWB/KUSI) — Researchers say they have discovered a new species of tropical fish during an expedition to remote islands off the Pacific coast of Mexico. Named the Halichoeres sanchezi, or ...