With sumptuous, fleshy lips and a bulbous, protruding forehead, the humphead wrasse is an unforgettable fish. This enormous, colorful coral-reef dweller is slow to reproduce, making it vulnerable to ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Far beneath the ...

On occasion, different species of angelfish produce hybrid offspring even more colorful than the parents. By Sabrina Imbler When American painter Bob Ross said, “There are no mistakes, only happy ...

Visual signals, such as color patterns are an important communication medium for anemonefish. Researchers from Okinawa Institute of Science and Technology have recently elucidated how the patterns on ...

If you liked this story, share it with other people. Mike Gil, an ecologist at the University of Colorado Boulder, deployed video cameras to “spy” on coral reef fish over months and found that they ...

Coral reefs are necessarily gorgeous in color and movement, but below the waves there is a similarly colorful world of sound. Underwater, there is a soundscape of snapping shrimp, grunting fish, and ...