Perhaps you know someone who's written his name in snow, you know, with urine. That's essentially what some fish do every day. In a study titled, "To pee or not to pee: urine signals mediate ...

Animals, like humans, communicate in lots of different ways. One of those ways, in animals as in humans, involves urinating on one another. Well, not right on one another, since the fish are in the ...

Fish pee just like humans do to excrete metabolic wastes. Some species produce a concentrated, somewhat yellow-hued urine that is quickly dispersed in their aquatic world. Besides water, fish pee is ...

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Coral reefs wouldn't be the same without their beautiful fish. A diversity of colorful, beautifully patterned species lives in tandem with coral reefs around the world, having adapted their appearance ...

Nearly 2,000 years ago, the Roman emperor Vespasian taxed the sale of human urine, then a valuable industrial ingredient. When his son objected, the emperor held a gold coin to his nose, asking ...