Nature & Environment
August 8, 2011 ·
5 comments
Image Credit: CC 3.0 Ltshears
Source: Science Daily | Comments (5)
Vampire bats detect blood with their noses
By T.K. RandallAugust 8, 2011 ·
5 comments
Image Credit: CC 3.0 Ltshears
Scientists have taken a closer look at how vampire bats know precisely where to bite in to their victims.
The answer lies in a special heat-sensing molecule on the bats' nose which allows them to determine where to sink their teeth in to something. "Vampire bats feed on blood, and it's useful for them to have an infrared detector to be able to find the circulation," said David Julius, a molecular biologist who led the research.Scientists have known for years that when vampire bats tear through an animal's skin with their razor-sharp teeth, their noses guide them to the best spots -- where a precise bite will strike a vein and spill forth nourishing blood. But nobody knew exactly how bats knew where to bite.
Source: Science Daily | Comments (5)
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