hairy-legged vampire bat: similar in size and habits to Desmodus rotundus; of tropical America including southern California and Texas
vampire bat: any of various tropical American bats of the family Desmodontidae that bite mammals and birds to feed on their blood
ghrelin: a gastrointestinal hormone produced by epithelial cells lining the fundus of the stomach; appears to be a stimulant for appetite and feeding, but is also a strong stimulant of growth hormone secretion from the anterior pituitary