Hippopotamus, Masai Mara, KenyaWe got up and out before the hippos got up and in. They often leave the water at night and can be found grazing at dawn. As soon as the sun gets hot, however, they generally get back into the water. Their skin is very susceptible to burning and they spend the hot part of the day with their bodies fully submerged. You can see cape buffalo in the background not yet fully awake. Photographed on the Masai Mara plains in Kenya. Nikon D300 with Nikkor 200-400mm lens (at 240mm) ISO 800, f/4 at 1/250th of a second.