noaasanctuaries:

A mother and calf humpback whale glide through the surface waters in Hawaiian Islands Humpback Whale National Marine Sanctuary. 

After a nearly 12-month gestation period, a female humpback whale gives birth to a single calf that she closely nurtures and feeds for six to 10 more months. While humans consume milk that is about two percent fat, the milk humpback whale moms provide to their calves is 45 to 60 percent fat! This rich milk helps calves grow and develop as their mothers lead them through the first months of life. 

(Image: J. Moore/NOAA, under NOAA Permit #15240)