Dead, live guppies vie for paternity

Females can use sperm months after mates go belly up

Among wild guppies in Trinidad streams, a female (left) can store sperm from a male (right). In a new experiment, female Trinidadian guppies lived much longer than males and still used sperm left over from the generation of the grandfathers of current males. 

Paul Bentzen/Dalhousie

This article is only available to Science News subscribers.

Subscribers, enter your e-mail address to access our archives.

Not a subscriber?

Science News is a nonprofit.

Support us by subscribing now.

More Stories from Science News on Animals

From the Nature Index

Paid Content