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 ...

Habitat: The tropical fresh waters of northern South America and the southern Caribbean. The excitement of the new. The attraction of the exotic. Sometimes it’s nice to have a change. This is a ...

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 ...

Female guppies with smaller brains can distinguish attractive males, but they don't recognise them as being more appealing or choose to mate with them, according to a new study by UCL and Stockholm ...

Sexual harassment from male guppies is so bad that long-suffering females will risk their lives to escape it, according to new research. Sexual harassment from male guppies is so bad that ...

PITY the friends of a sexually harassed female guppy – they are likely to feel her anger. In her lab, female guppies were more likely to chase and nudge other females after exposure to a male (Biology ...

Animal sexual reproduction can involve males attempting to entice or force females to mate with them, even if they are not initially interested.This male behavior is driven by conflicts of interest ...