Males are not always bigger…unless they are northern elephant seals

A new study published in Nature Communications challenges the popular notion that males are usually bigger than females – at least in mammals. Their findings are consistent with Dr. Katherine Ralls who also challenged this idea in the late 1970s. In this new study, researchers looked at data collected for 429 species of animals. Rather than using averaged values from the literature, they turned to large-published datasets that included values […]

Continue Reading →