Bats are an order of animals that are known to inhabit or have inhabited multiple versions of Earth.
To get Safiyah Sohail's attention, Alice taped a rat to Mouse' s body to attract some bats so they could feed on his blood from him, thus devouring the poison that killed him. Mouse's body was then brought to Mary Hamilton's secret clinic where the bat left Mouse's body and was captured and trapped by the team. The Bat Team then discovered Alice's plan. She used a device to control several infected bats and force them to attack Gotham citizens during a protest. Ryan Wilder, wearing the Batwoman suit, was able to drive the bats away before trapping and exploding them in a Crows' bus.
- Bats inspired Bruce Wayne to create his alter ego, Batman.
- According to Mouse, bats eat rats, as predator among prey.