a substantial portion of the carbon dioxide the bats exhaled—up to 60 percent—came from the metabolization of amino acids ...

Researchers have discovered an infrared-sensing protein channel that allows vampire bats to identify the hottest part of the animal—veins close to the skin’s surface that carry 38 degree-Celsius (100° ...

Vampire bats are the only mammals to feed entirely on blood and have tiny infra-red receptors in their nose leaf which can detect the most blood-rich veins on an animal, from up to 20 cms away.