A zebu (/ˈziːˌbjuː/, /ˈziːbuː/ or /ˈzeɪbuː/; Bos primigenius indicus or Bos indicus or Bos taurus indicus), sometimes known as indicine cattle, humped cattle or Brahman, is a species or sub-species of domestic cattle originating in South Asia. Zebu are characterised by a fatty hump on their shoulders, drooping ears and a large dewlap.
Feral cattle (Bos taurus) are escaped or released domestic animals. Unless well contained by adequate fences, they form feral herds and wander into native vegetation wherever suitable food is available. They can severely modify native vegetation by browsing, crushing and trampling. In native forests they invariably lay bare the forest floor and eliminate nearly all young trees, shrubs and ferns until only a few unpalatable or browse-resistant species remain. In subalpine environments feral cattle open up clearings by breaking down and browsing low-canopied vegetation.