Facts about Vampire Bat Feeding Habits
- 05
Common vampire bats use a razor-sharp upper incisor to make a small, painless incision in the host's skin, then lap up the flowing blood rather than sucking it.
- 04
During a single feeding session, a vampire bat typically consumes about half its body weight in blood, which requires a rapid increase in urine production to reduce the extra mass for flight.
- 03
Vampire bats consume only blood, and their saliva contains an anticoagulant compound called draculin that prevents the host's wound from clotting during feeding.
- 02
A vampire bat shares surplus blood meals with roost companions through regurgitation, a cooperative behavior that helps colony members survive when they fail to feed.
- 01
The common vampire bat feeds exclusively on blood and uses heat-sensing receptors near its nose to locate warm blood vessels close to the skin.