Female blue tits with brightly coloured crowns are better mothers than duller birds, according to a new study led by the University of York.
Researchers at Columbia University Medical Center have discovered that the skeleton acts as a regulator of fertility in male mice through a hormone released by bone, known as osteocalcin.
(PhysOrg.com) -- A new study from the University of Reading highlights how climate change is having a detrimental effect on an endangered tropical bird population.
With mutations, it turns out that context can be everything in determining whether or not they are beneficial to their evolutionary fate.
It's quite common for a female song sparrow to stray from her breeding partner and mate with the male next door, but a new study shows that sleeping around can be costly.
The reproductive success of both men and women is influenced by our personality traits, according to new research from the University of Sheffield.
Researchers at Bielefeld University and the Technische Universität Braunschweig are the first to confirm the benefit of multiple paternities for a vertebrate under completely natural conditions. Together with their team, ...
An international team of researchers has used ancient DNA to produce compelling evidence that the lack of genetic diversity in modern stallions is the result of the domestication process.
Male seahorses have a clear agenda when it comes to selecting a mating partner: to increase their reproductive success. By being choosy and preferring large females, they are likely to have more and bigger eggs, as well as ...