
Why Bats Share Blood
Clip: Season 43 | 1m 54sVideo has Closed Captions
Vampire bats will sometimes share a blood meal—but only with friends and family.
Vampire bats will sometimes share a blood meal—but only with friends and family.
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Problems with Closed Captions? Closed Captioning Feedback
National Corporate funding for NOVA is provided by Carlisle Companies. Major funding for NOVA is provided by the NOVA Science Trust, the Corporation for Public Broadcasting, and PBS viewers.

Why Bats Share Blood
Clip: Season 43 | 1m 54sVideo has Closed Captions
Vampire bats will sometimes share a blood meal—but only with friends and family.
Problems with Closed Captions? Closed Captioning Feedback
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Clip: S43 | 1m 54s | Vampire bats will sometimes share a blood meal—but only with friends and family. (1m 54s)
Quantum Physics to Protect Votes
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The Minerals Behind Modern Life
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National Corporate funding for NOVA is provided by Carlisle Companies. Major funding for NOVA is provided by the NOVA Science Trust, the Corporation for Public Broadcasting, and PBS viewers.