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: http://www.livescience.com/37149-male-guppies-are-posthumous-dads.html

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