Bat
Bat (order Chiroptera), any member of the only group of mammals capable of flight. This ability, coupled with the ability to navigate at night by using a system of acoustic orientation (echolocation),
has made the bats a highly diverse and populous order. More than 1,200
species are currently recognized, and many are enormously abundant.
Observers have concluded, for example, that some 100 million female mexian free tail bets form summer nursery colonies in Texas, where they produce about 100
million young in five large caves. The adult males are equal in number
to the females, though they do not all range as far north as Texas.
Furthermore, this species is found throughout tropical America. Thus,
one species alone numbers, at the very least, in the hundreds of
millions.
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