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The family Natalidae, or funnel-eared bats, are found from Mexico to Brazil and the Caribbean islands. [1] The family has three genera , Chilonatalus , Natalus and Nyctiellus . They are slender bats with unusually long tails and, as their name suggests, funnel-shaped ears.
Townsend big-eared bats like the one featured in the contest are known for their ears, as the name aptly suggests. Their ears can stretch up to 1.5 inches–nearly a third of their average full ...
Most bats are homeothermic (having a stable body temperature), the exception being the vesper bats (Vespertilionidae), the horseshoe bats (Rhinolophidae), the free-tailed bats (Molossidae), and the bent-winged bats (Miniopteridae), which extensively use heterothermy (where body temperature can vary).
Unlike some other species of bats with which it shares its range, Rafinesque's big-eared bat does not appear to be affected by the disease. Hypothesized reasons include use of hibernacula that may not provide optimal growing conditions for the causal agent (the fungus Pseudogymnoascus destructans ), relatively frequent arousals from torpor ...
The length of the Indiana bat's head to the body is from 4.1 to 4.9 cm. The animal weighs about 8 g (.25 ounce). These bats are very difficult to distinguish from other species, especially the more common little brown bat (Myotis lucifugus), unless examined closely.
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In the last three winters, the Pierce County sites have housed around 60,000 bats, Redell said, and during the summer, volunteers are counting higher numbers of bats leaving their summer roosts ...
The lesser horseshoe bat is one of the world's smallest bats, weighing only 5 to 9 grams (0.18 to 0.32 oz), with a wingspan of 192–254 millimetres (7.6–10.0 in) and a body length of 35–45 millimetres (1.4–1.8 in).