Whispering southern right whale mums and calves seek refuge in surf

Abstract

![Figure][1] \n\nA southern right whale mother and calf. Photo credit: Fredrik Christiansen.\n\n\n\nMost mammalian new mums are fiercely protective of their precious offspring; even 5–8\xa0m-long southern right whale calves are vulnerable to attack by voracious killer whales. Mia Nielsen from Aarhus