Sand bats were an animal lifeform, a type of bat, indigenous to Manark IV. Their defense-and attack-mechanism was camouflage. The bat appeared as inert, crystalline minerals to its cavern-dwelling prey. (TOS episode: "The Empath")
Sand bats were especially dangerous when they took to the air. (DS9 novel: Unity)
External link[]
- Sand bat article at Memory Alpha, the wiki for canon Star Trek.