Color changes in cichlids are crucial for communication within the species, particularly during territorial disputes and courtship. Gobies are small fish that inhabit various environments ...

About 15 million years ago, a small fish ventured too deep into a ... so exquisitely preserved that researchers can tell what colour the fish originally was, and its last meal.

In an Australian first, researchers have described a new species of 15-million-year-old fossilized freshwater fish, ...