The cheetah is the fastest mammal in the world, achieving speeds of well over 100 kilometers an hour. But this swift, beautiful animal is on the verge of extinction.

• 印度豹是世界上奔跑最快的哺乳动物，其全速奔跑时，时速超过一百公里。但这种敏捷而美丽的动物正濒临灭绝。