Seen from the air, they ripple across the landscape — a river of antelope racing across the vast grasslands of South Sudan in what conservationists say is the world's largest land mammal migration.

They are huge, blue and eye-catching — but nilgai antelope from Asia are unwelcome interlopers in two South Texas national park sites.

Just take our national rugby team and biggest pride, the Springboks. We do have deer (mainly fallow and axis deer) but they ...

The Great Nile Migration in South Sudan is the largest overland mammal migration on Earth, surpassing even the famous ...

Scientifically referred to as Hippotragus equinus, the Roan antelope is one of the largest and most formidable African antelopes of the family Bovidae. It is a member of the tribe Hippotragini ...