The beautiful blue-striped Mandarinfish is found in the Pacific ocean from Japan down to Australia. Most blue-colored animals don't naturally produce their own pigment — typically, blue animals ...

Sea slugs use bold, bright colors under sunlight to warn predators of their toxic traits. These colors are easier for fish to ...

These fascinating creatures have a human-like upper body, which is usually mesmerizingly beautiful, and a fish-like lower body, which gives them unmatched grace and agility in the water.

And it’s changing their behavior. The Los Angeles Times reports how these sea creatures have been ingesting what’s known as domoic acid, a naturally-occurring neurotoxin that’s produced by ...