You can't see it, but these fish are spreading nutrients all over. (Credit: Tischenko Irena/Shutterstock) There's something in the water around coral reefs. And that something is fish pee. Although ...

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 ...

Fish are like underwater gardeners, fertilizing the coral reefs, kelp forests and seagrasses where they reside. Their fertilizer of choice—their own pee. But, fish communities are facing many changes.

All living things need water. It’s how life works on Earth. But do animals that swim in water drink water? I talked about that with my friend Nora Hickey. She’s a fish veterinarian at Washington State ...

Fish are like underwater gardeners, fertilizing the coral reefs, kelp forests and seagrasses where they reside. Their fertilizer of choice — their own pee. But, fish communities are facing many ...