They hypothesized that vampire bats might utilize a metabolic trick similar to that of certain blood-sucking insects, such as ...

One female was nursing a four-month-old pup, and the pregnant one’s swollen belly indicated that she would give birth soon. A spectral bat, or Linnaeus’s false vampire bat, bites down on a ...

Vampire bats, for example, feed only on blood ... proteins in the way some bloodsucking insects do. Tsetse flies and female mosquitoes fuel their energetically costly flying activities by directly ...