It looks bizarre - but this strange-looking aircraft played a critical role in landing humans on the Moon, building the International Space Station, and still supports missions today. Meet the Guppy, ...

We've seen in our simulations that the more brightly colored a male guppy is, the more likely he will be seen -- and eaten -- by a predator. In a simulation or in the wild, where predators are ...

A properly dressed male guppy, with its gaudy blue spots and brilliant splashes of orange, can't help but stand out. But for a fish that spends its life swimming among predators, it seems that ...