Family History

       


 






Amazon Ads
 
 
 
 
Hippo gape
Photograph by Jeffrey Eisen, 2019
 
A hippopotamus gapes beneath the surface, its mouth a pale vault lined with molars and and some greens tossed in. A hippopotamus can open its mouth up to 150 degrees, revealing one of the strongest bite forces in the animal kingdom—measured at over 1,800 pounds per square inch.