New study on guppies shows that animals evolve in response the the environment they create in the absence of predators, rather than in response to the risk of being eaten. Guppies, a perennial pet ...

The streams of Trinidad and Tobago are home to the most unexpected of landscape gardeners. They’re guppies – tiny and beautifully coloured fish, just an inch or so long. Without tools or plans, they ...

Guppies are a small, pretty species of fish that are extremely popular for home aquariums. While they’re fun in captivity, in the wild they can cause major trouble. Native to South America, guppies ...

Guppy owners know to keep the lid on their aquarium tightly sealed. Otherwise, the colorful little fish will leap to their deaths. Possibly into a chai latte. That’s where one seemingly suicidal guppy ...

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 good ...

Trinidadian guppies behave like matadors, focusing a predator's point of attack before dodging away at the last moment, new research shows. Trinidadian guppies behave like matadors, focusing a ...

Guppies are jumpers. All the guppy owners out there know what I'm talking about. The fish's proclivity to leap from their tanks requires the installation of weighted ...

We've said it a hundred times, but the earlier you expose your young ones to heavy metal, the more awesome they'll become in their formative years. It's science. Obviously, the fine people at Nick Jr.

Duping a guppy is easier than duping a ring dove — at least when it comes to a classic optical illusion. In the Ebbinghaus illusion, two identical circles placed side by side are each framed by a set ...

I receive funding from The Australian Research Council. It’s not always easy to tell if a fish is male or female: they look more or less the same. But there are exceptions, such as guppies and, as ...