Researchers studying pharmaceutical pollution tracked salmon that had been exposed to anti-anxiety medication. The fish ...

They are small, black-and-white striped fish that live in groups ... in and stay hidden from predators," said Dr. Louise Tosetto from Macquarie University's School of Natural Sciences.

form hunting schools to patrol the reef for dense schools of prey fish, like cardinalfish. Voracious predators, bigeye trevallies have evolved lightning swiftness and exceptional cooperation that ...