Animal Hall of Fame: Fastest
You won't want to challenge any of these animals to a race! Follow this slideshow to see how fast the cheetah, killer whale, peregrine falcon, and sailfish can travel.
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The cheetah can run as fast as 70 m.p.h., and can go from 0 to 60 m.p.h. in just three seconds. These endangered animals only need to replenish themselves with water every three or four days.
NexT: Marine mammal