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Bracken cave

 

bracken cave

Many bats live in large groups called colonies. Bracken Cave in Texas, USA contains the world’s largest bat colony, with about 20 million animals. This is one of the densest populations of any mammal and there can be as many as 5,000 newborn babies per square metre (11 square feet). These bats eat 1,000 tonnes of insects every night.

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