Wednesday, June 5, 2013

Male Guppies Father Offspring After Death

As much as a quarter of Trinidadian guppy offspring are sired by dead males.


Death doesn't stop some animals from becoming parents, research reveals.

A new study shows that female Trinidadian guppies can store and use sperm from males long after the males die. Up to a quarter of guppy offspring are sired by dead males, maintaining a diverse gene pool even in harsh environments, the study showed.

In many species — including ants, turtles, bats and even whale sharks — females can save up sperm in their reproductive tract and use it later to fertilize eggs and produce offspring. 

Sometimes, sperm can be stored sperm for more than a year. But previously, this phenomenon had been observed only in the laboratory.

For the rest of the story:

No comments:

Post a Comment

Related Posts Plugin for WordPress, Blogger...