The rainbow tripod fish was filmed near Cozumel, Mexico, and the video has prompted a mix of awe and skepticism. Many asked ...

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The rose-veiled fairy wrasse is the first Maldivian fish to be described by a local scientist. Pictured: a male rose-veiled fairy wrasse Yi-Kai Tea/Californa Academy of Sciences Deep in the waters off ...

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' ...