Archive for September, 2012

Hot heads lead to hot flashes: the evolution of menopause

Hot heads lead to hot flashes: the evolution of menopause

By EcoEvo@TCD | Reviews

A new study has been published online in Ecology Letters by Mirkka Lahdenperä and colleagues, which suggests that competition between grandmothers and their daughters-in-law may explain the evolution of menopause. The study used a 200-year dataset of births, deaths and residency patterns in pre-industrial Finland to show that competition between unrelated females of different generations was a key component of selection for menopause. Humans are among only four species known to lose their ability to reproduce long before they die; the others being killer whales, pilot whales and one aphid species. This phenomenon of menopause poses somewhat [&hellip

Welcome to EcoEvo@TCD

Welcome to EcoEvo@TCD

By EcoEvo@TCD | News

Welcome to the Ecology & Evolution blog written by members of the School of Natural Sciences, Trinity College Dublin, Ireland