News tagged with sex ratios

Competing for a mate can shorten lifespan

"Love stinks!" the J. Geils band told the world in 1980, and while you can certainly argue whether or not this tender and ineffable spirit of affection has a downside, working hard to find it does. It may even shorten your ...

Aug 09, 2010
3.6 / 5 (5) 2 | with audio podcast

Manipulative mothers subdue show-off sons

The gaudy plumage and acrobatic displays of birds of paradise are a striking example of sexual selection, Charles Darwin's second great theory of evolution. But new research shows that this powerful process may collapse when ...

Sep 12, 2011
5 / 5 (2) 0 | with audio podcast

Omega-6 key to female lamb conception

New research has shown farmers may be able to determine the sex ratios of lambs by raising omega-6 fatty acids in the diets of breeding stock, a discovery that could have major benefits for industry.

Aug 15, 2013
5 / 5 (2) 0