Thirteen of their genes are missing or no longer work. The scientists studied vampire bat genomes alongside the genomes of 26 other bat species-and vampire bats came up short. Researchers compared bats’ genomes, the “blueprint” designs possessed by every organism with more than one cell. Blood is rich in iron and protein but has minimal fats or carbohydrates. Most mammals couldn’t survive on such a liquid diet. They will bite humans, too, but very rarely. (Although rather than sucking it, they actually bite a little slit into an animal’s hide and lap it up.) When feeding time arrives, these bats search for horses, cows, pigs, or birds. They measure about three inches long with a seven-inch wingspan. We also (of course) know that vampires aren’t real-at least, not the fanged, garlic-hating, nocturnal monster version, right?īut vampire bats, native to Mexico and Central and South America, are totally genuine little mammals, created by God. We know “vampires” in stories drink blood because we’ve heard about it from Dracula.
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