First documentation of flehmen in a common hippopotamus (Hippopotamus amphibius)

Abstract 10.1002/(SICI)1098-2361(1999)18:53.3.CO;2-Q A male common hippopotamus (Hippopotamus amphibius) was observed giving a flehmen grimace on 14 occasions in July and August of 1998 at the Denver Zoo. Twelve instances of flehmen occurred after anogenital investigation of the female as she was exiting the pool. The two other instances of flehmen occurred in the terrestrial portion […]