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Image: A bat hangs
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Bats are particularly vulnerable because of their unique biology. Unlike most mammals their size, they reproduce slowly — most species have only one offspring per year. And because they live in such large groups, it's easy to wipe out millions in a single act.
updated 10/31/2008 8:17:58 AM ET 2008-10-31T12:17:58

Enjoyed a margarita lately? Thank a bat.

Bats pollinate the agave plant that tequila is made from, as well as the avocados in that accompanying guacamole. Closer to home, you can also thank bats for fewer mosquito bites: A single bat eats hundreds of flying insects per hour.

Most people only think of bats when they're hanging decorations at Halloween, and consider them dangerous vermin — an opinion based entirely on myths and misconceptions. Bats are not flying mice, they don't want to fly into your hair, and only three out of the over a thousand species worldwide drink blood.

Statistically, you're less likely to die from rabies from a bat bite than to be killed by a dog attack — which is itself less likely than being killed by lightning.

Still, some think just being near a bat is dangerous.

“I know plenty of people who've injured themselves in panicked fleeing from a bat when the bat itself wouldn't have hurt them,” says Merlin Tuttle, bat expert, author, and founder of Bat Conservation International.

For Leslie Sturges, every day is a bat day. She rehabilitates and releases injured and orphaned wild bats at Bat World NOVA rescue center in Annandale, Va., and presents educational programs with a dozen long-term resident bats who can't be returned to the wild.

What fascinates Sturges about bats is how they pack so much into such a tiny package.

“They have the kind of intellect, adaptations, social behaviors that you'd expect in a large mammal,” she says. “And, on top of that, they fly!”

What's more, bats use echolocation — navigating by emitting high-frequency sounds and listening to the echoes that bounce back. They can locate an object as fine as a human hair in pitch darkness.

“What they're doing in that minuscule little brain case is so unique and incredible,” says Sturges.

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Bats can be great neighbors, as you can see in Austin, Texas, where Bat Conservation International is headquartered. A colony of 1.5 million Mexican free-tailed bats that roosts in the Congress Avenue Bridge has become a major attraction, bringing about 100,000 people each summer to watch the bats emerge — standing within 10 feet or so of them with no trouble, according to Tuttle.

In fact, we're more of a threat to them than they are to us. Like many animals, bats suffer from habitat loss due to human activity — and they're also threatened by our very fear of them.

“One of the biggest risks to bats is that people still panic at the sight of one and their first thought is to kill it,” says Tuttle.

Bats are particularly vulnerable because of their unique biology. Unlike most mammals their size, they reproduce slowly — most species have only one young per year. And because they live in such large groups, it's easy to wipe out millions in a single act.

Bats are also suffering from a mysterious new disease called White-nose Syndrome that's spread through the Northeast in the past two years, nearly wiping out affected colonies. Some have compared it to the more well-known colony collapse of honeybees, and BCI is sponsoring emergency research into its cause.

“Any time you start having mass dieoffs of animals as distantly related as bees and bats, it's time to sit up and take notice,” says Tuttle.

On the bright side, bats' habit of living in enormous groups means that one act of conservation can also make a huge difference, as in BCI's purchase of Bracken Cave in central Texas, home to 20 million free-tailed bats. As well as preserving the site for the colony, BCI plans to build a center that will help to educate people about how valuable bats are — now more than ever, when everyone's thinking about going green and buying organic.

“Bats reduce pesticide use substantially,” says Tuttle. Remember, he says: “Fewer bats, more pesticides.”

Copyright 2008 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.

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