WILLIAM ERVIN / SCIENCE PHOTO LIBRARY WILLIAM ERVIN / SCIENCE PHOTO LIBRARY
Pika. View of a juvenile pika (Ochotona princeps) on a rock in alpine tundra. The pika is a rat-sized mammal that weighs up to 180 g and has a body length of up to 21 cm. The pika lives in large colonies, however within these colonies individuals maintain their own territory. A pika's diet consists of grass and flowers. Pika's do not hibernate, and they reproduce in the spring and summer. Gestation lasts for about 30 days and the female gives birth to 2-5 young. The pika is found in rocky terrain in northwestern USA and western Canada. It lives in areas where human presence is very limited. Photographed in Colorado, USA.
Model release not required. Property release not required.