News tagged with mature males

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

Sea lampreys fear the smell of death

A repellant for sea lampreys could be the key to better controlling one of the most destructive invasive species in the Great Lakes, says a Michigan State University researcher.

Aug 06, 2011
4.6 / 5 (7) 3 | with audio podcast