guppies

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Scientists Freak Out Fish to Find Out How Brave They Are

Guppies apparently have distinct personalities, researchers find

(Newser) - Frightening fish isn't something you'd find on most people's daily to-do lists, but for researcher Tom Houslay, it was all in a day's work. Per the Washington Post , the evolutionary biologist at the University of Exeter gave his team the task of determining if the fish...

Ugly Fish Have Stronger Sperm

Pretty boys get the girl first and still finish last

(Newser) - Pretty, colorful guppy guys may get all the ladies, but ugly guppies have “better sperm,” researchers concluded in a recent study. The group watched tropical guppies, and concluded that the colorful men had to “invest” in their beauty at the expense of slowing down their sperm. That's...

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