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Bat Sonar And Anti-Submarine Warfare

Apr. 29, 2002 — Dolphins do it. Big brown bats do it. And sometime soon, the Office of Naval Research hopes its researchers will be able to do it too. http://www.sciencedaily.com/releases/2002/04/020429073532.htm
http://en.wikipedia.org/wiki/Bat

Bat

Bats are mammals of the order Chiroptera ( pron.: / k aɪ ˈ r ɒ p t ər ə / ; from the Greek χείρ - cheir , "hand" [ 2 ] and πτερόν - pteron , "wing" [ 3 ] ) whose forelimbs form webbed wings , making them the only mammals naturally capable of true and sustained flight . By contrast, other mammals said to fly, such as flying squirrels , gliding possums , and colugos , can only glide for short distances. Bats do not flap their entire forelimbs, as birds do, but instead flap their spread-out digits , [ 4 ] which are very long and covered with a thin membrane or patagium .
Amid heightened concerns about climate change and the economic and environmental costs of fossil fuels, wind has become an increasingly popular source of energy. http://www.batcon.org/index.php/what-we-do/bats-and-wind-energy.html

Bats & Wind Energy

Bats Facts and Video - Order: Chiroptera - Defenders of Wildlife - Defenders of Wildlife

http://www.defenders.org/bats/basic-facts Bats are the only mammals capable of true flight. With extremely elongated fingers and a wing membrane stretched between, the bat’s wing anatomically resembles the human hand. Almost 1,000 bat species can be found worldwide.