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 ...

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The purchase of the first aquarium brings a lot of excitement. Choosing the first pet is not always easy because of the variety of different species of fish that can be purchased. Some of the fish ...

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 ...

When it comes to choosing a partner, some species prefer males that stand out from the crowd. Evolutionary biologists call the resulting process negative frequency-dependent selection. It means that a ...

It turns out color isn't just fashionable for guppies: According to a new UBC study, the more orange a male, the more virile it is. The research published in Nature Ecology & Evolution shines light on ...

For female guppies, there’s more to life than making babies. Subscribe to read this story ad-free Get unlimited access to ad-free articles and exclusive content. A new study finds that guppies ...

Guppies faced a see-through food trap, and their reactions ranged from patient detours to head-long collisions, exposing big individual gaps in self-control. Compared with a cousin population, these ...

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 ...

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 ...