A bull Hippo puts on an effective threat display. The exaggerated yawn is a clear signal to those around that he is well armed and prepared to fight
A bull Hippo puts on an effective threat display. The exaggerated yawn is a clear signal to those around that he is well armed and prepared to fight if any encroach on his space
Size: 5800px × 4071px
Location: Katavi National Park, Tanzania
Photo credit: © Nick Greaves / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: adaptation, africa, aggressive, amphibious, aquatic, artiodactyl, basking, bloat, bull, canines, communication, daytime, declining, dentition, endemic, environment, evolution, fighting, glands, grazer, habitat, hairless, hippo, hippopotamus, hippotamidae, ikuu, incisors, katavi, mammal, man, melanin, national, night-time, numbers, park, pink, placental, pool, protection, sebaceous, secretion, seep, sensitive, skin, social, solitary, sunburn, sweat, tanzania, territorial, thermoregulation, threat, vegetarian, vertebrate, vocal, wallow, whippomorphia, wildlife