A rumor that hippopotamus milk is pink has been spreading on the internet for many years — and the idea gained traction when National Geographic posted about it on its Facebook page.

Hippopotamuses are some of nature’s heavyweights. Their massive size and aggressive temperament have earned them a spot as Africa’s deadliest animal time and time again. It’s hard to imagine just how ...

Limited published information was available on hand-rearing this species of hippopotamus (hippo). To devise a nutritionally appropriate recipe, milk samples were acquired from the dam on Days 1, 3, 8, ...