Scientists have discovered that female guppies choose males with uncommon color patterns to drive the evolution of their ...

Spanish biologist Ignacio Paulin became fascinated by the behavior of these fish, in a project that could now disappear due ...

Guppy fish can be one of the five most effective forms of dengue control, as these tiny fish can be placed in water vessels in and around homes, where they will eat the larvae of dengue-transmitting ...

Guppies can be fooled by optical illusions into believing objects are smaller or larger than they really are. This suggests they might not always make the best choices in their natural environment.

Are you thinking of keeping fish as pets but don’t know where to start? Take a look at two of the most popular choices for beginners - Guppy fish and Swordtail fish. Here are the reasons why these ...

When Robert Heathcote dips his head into the rivers of Trinidad, he’ll often see little black dots moving through the water, even when it’s murky. Those dots are the eyes of small, inch-long fish ...

Mexican president Claudia Sheinbaum celebrates national soccer team after Mexico beat South Korea 1-0 to become the first ...

Larvae-eating guppy fish can help combat the spread of dengue, a mosquito-borne illness giving rise to hundreds of thousands of severe cases including 20,000 deaths worldwide every year. Larvae-eating ...

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 ...

Just like humans trying to stick to New Year’s resolutions, guppies have varying levels of self-control, a study has suggested. Researchers from the universities of Exeter and Ghent examined the ...