Common Vampire Bats (Earth-7045)

The common vampire bat (Desmodus rotundus) is a small, leaf-nosed bat native to the Americas. It is one of three extant species of vampire bat, the other two being the hairy-legged and the white-winged vampire bats. The common vampire bat practices hematophagy, mainly feeding on the blood of livestock. The bat usually approaches its prey at night while they are sleeping. It then uses its razor-sharp teeth to cut open the skin of its hosts and lap up their blood with its long tongue.

The species is highly polygynous, and dominant adult males defend groups of females. It is one of the most social of bat species with a number of cooperative behaviors such as social grooming and food sharing. Because it feeds on livestock and is a carrier of rabies, the common vampire bat is considered a pest. Its conservation status is categorized as Least Concern by the International Union for Conservation of Nature (IUCN) because of "its wide distribution, presumed large population tolerance of a degree of habitat modification, and because it is unlikely to be declining at nearly the rate required to qualify for listing in a threatened category."

History
The history of the common vampire bat on Earth is the same as its real world counterpart.

This wouldn't be the only planet the universe would hear from this species, however. Multiple common vampire bat specimens were abducted via time travel by a cyborg alien race known as the Quintessons. This was at the behest of a scientist named Xeros, who was using time window technology to acquire samples of alien life for purposes of creating bioweapons, starting the project with Earth. The ship transporting this exotic cargo would soon wind up on an uninhabited planet in the distant past thanks to sabotage by one of the scientists, Extempaxia.

A lost Cybertronian ship, the Hyperboria, would soon also crash on the planet, killing the crew, leaving the protoforms onboard to fend for themselves on the planet, find the ship, release the cargo, and assume new forms based on those creatures. This would lead to a colony of Cybertronians unknown to the universe at large, who dubbed the planet Animatron. Ultimately, the abducted vampire bats died quickly, the Earth animals being unable to survive in an alien biosphere.

Habitat
Habitat: Caves, hollow trees

Gravity: 9.80665 m/s

Atmosphere: 78% nitrogen, 21% oxygen, 0.93% argon, 0.04% carbon dioxide, remaining percentage other gases

Trivia

 * The common vampire bat's form has been used by at least three Transformers: Sonar & Nightstrike as an alt. mode, and Ratbat as a primary mode.