Unidentified bat-like creature (Lost in Space)

This is an unnamed species of large, aerial predators native to the planet in which the survivors of the Resolute attack crash-landed.

Biology
These creatures inhabit caves and seem to live in large swarms. They use membranous wings to fly, like a bat, and spend long periods of time hanging down from the cave ceilings, completely immobile. According to Dr. Watanabe, who chemically analyzed their feces, they appear to be at the pinnacle of the food chain and opportunistically feed on every other species that he had analyzed on the planet.

Lacking eyesight, they locate prey solely by sound and are attracted to loud noises. Curiously, faint sounds such as breathing don't seem to have much of an effect on them, though, and they will ignore potential prey provided it remains quiet.

Appearances

 * Netflix's Lost in Space, s01e09, "Resurrection" (2018)