AnimalsTop speed

Fastest mammal

Record

160 km/h

99.4 mph

Record holder
Mexican free-tailed bat

✓ Value cross-checked in a second source

This level flight speed has been claimed for this bat. On land, the fastest animal is the cheetah, at 93 to 104 km/h.

Fastest mammal
Photo: U.S. Fish and Wildlife Service Headquarters · Public domain

What to remember

No mammal goes faster than the Mexican free-tailed bat: 160 km/h (99 mph), clocked in level flight. It has even been claimed to have the fastest horizontal speed of any animal, with no dive to help it along.

This medium-sized bat lives across North, Central and South America and the Caribbean. Its tail can be almost half its total length and is not attached to the membrane between its hind legs, hence the name. It also flies higher than any other bat, at around 3,300 m.

It is one of the most abundant mammals in North America, yet it gathers in huge numbers at relatively few roosts. Up to 1.5 million bats live under just one bridge in Austin. In 1995 the Texas Legislature named it the state's "Official Flying Mammal".

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