A Hippopotamus Along a River in Rwindi

Hippos in the Water

A Hippo Splashes into the Water

A Submerged Hippopotamus Rises to the Surface for Air

View of a Black Rhinoceros

Two Hippopotamuses with Their Faces Half Submerged in the Water

Hippopotamuses Basking in River Water

Hippopotamus Yawning Among Water Plants

Hippopotamus Showing Territorial Display of Mouth-Opening

A View of Hippopotamuses Lounging in the Water

Hippopotamuses Sparring with One Another

Black Rhinoceroses in the Grasslands of Ngorongoro Crater

Hippopotamuses Swimming in the Chobe River

Male Hippopotamuses Vie for Territory

A Hippopotamus (Hippopotamus Amphibius) in the Surf, Mouth Open to the Sky

A Close View of a Rhinoceros Viper

A Rhinoceros Feeds on Grass

A Docile Looking Indian Rhino Chews on a Few Leaves

Four Hippopotamuses Poke Their Heads out of the Water

A Hippopotamus Yawns in the Water

Close View of the Marble-Like Eye and Patterned Scales of a Rhinoceros Viper Snake

A Hippopotamus Yawns While Swimming in the Water

Hippopotamus Drinking in a Marsh Near Several African Jacanas

A Herd of Hippos Lounge in the Water

Hippopotamus Swimming

Hippopotamuses with Birds Walk Near a Water Hole

Hippopotamus (Hippopotamus Sp.), Zambezi River, Zambia

A Male White Rhinoceros (Ceratotherium Simum) in a Summer Wallow

A White Rhinoceros and Her Baby Bathe in the Mud on a Hot Day

A White Rhinoceros and a Reticulated Giraffe Share a Kenyan Savanna