Definition
*Diphylla* is a genus of vampire bats, containing only one living species: the hairy-legged vampire bat (*Diphylla ecaudata*). Unlike the true vampire bat, *Diphylla* feeds on bird blood, as well as mammal blood. Imagine *Diphylla* as a more versatile, if equally mysterious, member of the vampire bat family. Found in parts of Central and South America, they have adaptations for feeding on different types of prey. The study of *Diphylla* reveals the diverse feeding strategies within vampire bats. It helps scientists understand the evolution of hematophagy.