An endangered wild ox, called a gaur, and a banteng (wild cattle) have also been successfully cloned.

MSN: Should we have cloned rare tortoise Lonesome George?

Or, take a reforest trip and find endangered elephants at the Kuala Gandah Elephant Sanctuary or endangered guar (wild cattle) at the Seladang-Gaur Wildlife Conservation Center.

BBC: Sustainable travel in Malaysia

Mr. Kelley now has a breeding operation on some of that acreage, known as Rum Creek Ranch, that's dedicated to a range of endangered species including tapirs, anoas (small buffalos), hippos, rhinos, bongos (antelopes), bentang (wild cattle) and a host of others.

WSJ: The Man With a Million Acres

To make snares, the poachers tear down the wire fences that keep wild animals away from cattle farms.

ECONOMIST: Zimbabwe��s non-farmers

Individuals strayed into areas with little wild prey and plenty of livestock, a handful of sheep and cattle were killed and two pack members were shot dead.

CNN: Wolves' return to Yellowstone sparks controversy

Evidence suggests some wild badgers can become infected with the bacteria that causes bovine TB and pass it on to cattle.

BBC: Second badger cull licence issued