Guppies are beginner-friendly, low-maintenance fish that thrive in a 10-gallon tank, with a peaceful temperament and omnivorous diet. Males are smaller with vibrant colors, while females are larger ...

The video follows the introduction of new baby turtles into an established guppy pond. At first, the scene feels calm as the ...

TALLAHASSEE, Fla.--In the natural stream communities of Trinidad, guppy populations live close together, but evolve differently. Upstream, fewer predators mean more guppies but less food for each; ...

Here are some images of typical guppy habitats on Trinidad, an island off the coast of Venezuela. Guppies usually occupy the entire length of a stream, from the trickling headwaters to the much wider ...

The social environment of animals, particularly in the early stages of life, can have great impact on species-specific and sex-specific behaviours. These changes can be irreversible and continue ...

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 ...

In a new study, researchers found that female guppies often choose a mate that physically stands out from the rest of the pack because of a common type of learning called habituation. Through ...

It is often stated that polymorphisms for mutations affecting fitness of males and females in opposite directions [sexually antagonistic (SA) polymorphisms] are the main selective force for the ...

Grouping provides many potential benefits to individuals in terms of foraging and anti-predator protection. However, it has been suggested that individuals could gain additional benefits in terms of ...