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Episode 134 – Sanguivores (Blood-Eaters)

The Common Descent Podcast

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The Evolution of the Vampire Bat

Desmodis is very common. It feeds on large mammals. The other two species of vampire bats are pretty rare. So in the last few thousand years, this species of bat has done extremely well because its ecosystem has been invaded by horses and pigs and cows and sheep and goats. Why are there suddenly so many more big, large mammals? Somehow they must have been a land bridge. We've filled their area with live stock,. Now they have tons to feed on. He he he ye.

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