Hares and jackrabbits are leporids belonging to the genus Lepus. A hare less than one year old is called a leveret. Four species commonly known as types of hare are classified outside of Lepus: the hispid hare (Caprolagus hispidus), and three species known as red rock hares (Pronolagus spp.). Hares are very fast-moving animals; the European brown hare (Lepus europaeus) is able to run at speeds of up to 72 km/h (45 mph). They live solitarily or in pairs, while a 'drove' is the collective noun for a group of hares. A common type of hare in Arctic North America is the snowshoe hare, replaced farther south by the black-tailed jackrabbit, white-tailed jackrabbit, and other species. Normally a shy animal, the European brown hare changes its behavior in spring, when hares can be seen in broad daylight chasing one another around meadows; this appears to be competition between males to attain dominance (and hence more access to breeding females).
Contributions by UtherSRG, Sengkang, and MPF.