Narrow-ridged finless porpoises are more social than assumed, study finds

Narrow-ridged finless porpoises are more social than assumed, study finds

A well-established fact of infancy in mammals is that the mother is the primary adult with whom an infant will interact. This holds true across species, from the tiniest shrew to the most massive blue whale. However, infants of many species also interact with adults who are not their parents. This is called "allomaternal behavior" and it is commonly seen in social mammals that move in groups or herds. One such allomaternal behavior is when young…