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 ...

New research has shown traces of a potent androgenic steroid used to beef up Australian cattle can cause male guppies to forcibly mate with unconsenting female guppies. Trenbolone is an ...

Canadian evolutionary scientists say claws are used by the male guppy fish to treble the amount of sperm transferred to reluctant females Added the species has evolved to benefit males at the expense ...

It’s not uncommon in the animal world for males to harass females and force them to mate with them, even if the females are not interested. But a new study has revealed female guppy fish learn to ...

Some males will go to great lengths to pursue a female and take extreme measures to hold on once they find one that interests them, even if that affection is unrequited. New research from evolutionary ...

An article published on Wednesday by Britain's Royal Society says that male guppies prefer to associate with their drab-coloured counterparts when females are around. "Males actively choose the social ...

As if the duck-rape genitalia arms race and traumatic sex in bed bugs weren’t enough, the research presented in this paper now informs us that male guppies have special penis claws that help them rape ...

Male guppies socialise with drab-looking buddies in order to increase their sex appeal, a study has revealed. If you found yourself all alone on Valentine’s day, maybe the problem is that you’re ...