News tagged with reproductive success

Related topics:

Skeleton regulates male fertility

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.

Feb 17, 2011
5 / 5 (1) 1 | with audio podcast

Cuckolded males sing louder

The song of male songbirds is multifaceted and has two main functions: to repel rivals and to attract mates. Females often pay attention to certain features within a song, such as the presence of special ...

Aug 23, 2012
5 / 5 (1) 0 | with audio podcast

Are elder siblings helpers or competitors?

Having elder siblings decreases mortality risk in childhood, but same-sex elder siblings are associated with lower marriage rates and fewer children for their younger siblings in adulthood, according to the ...

Nov 22, 2012
5 / 5 (1) 0 | with audio podcast