When choosing more attractive guys, girl guppies with larger brains have an advantage over their smaller-brained counterparts. But there’s a cost to such brainpower, and that might help explain one of ...

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 ...

Sexual harassment is a burden that females of many species face, and some may go to extreme lengths to avoid it. Female guppies, a popular aquarium fish, may even risk their lives to avoid too much ...

Female fish have become better swimmers in order to escape male sexual harassment, new research claims. The female guppies have learnt to shake off the unwanted male attention by changing their ...

For female guppies, there’s more to life than making babies. A new study finds that guppies experience menopause just like humans and other animals. The study is the first demonstration of menopause ...

In the animal world, sexual reproduction can involve males attempting to entice or force females to mate with them, even if they are not initially interested. This male behaviour is driven by ...

Guppies choose their friends wisely, new research suggests. When under threat of sexual harassment from aggressive male fish, female Trinidadian guppies pair with "attractive" females to avoid ...

Female birds do it, female bees do it, even female guppies in the (freshwater) seas do it. Choices by females often play the deciding role in mating behavior: Bronze-winged jacanas keep male harems ...

Best girlfriends might never let a man come between them — unless they're Trinidadian guppies. Among these fish, the presence of a harassing male can disrupt female social networks, causing ...

Their brightly-coloured skin and beautiful fins have made them a favourite pet. But woe betide anyone who releases their guppy fish into the wild for these tropical creatures can upset the other ...