Answer :
The unique ability of bats as compared to other mammals is Echolocation. So, the correct option is A.
What do you mean by Echolocation?
Echolocation may be defined as a physiological process for locating distant or invisible objects by means of sound waves reflected back to the emitter by the objects.
Echolocation is the unique ability of bats that have the capability to identify objects rather than seeing, while other mammals identify objects with help of sight.
Therefore, The unique ability of bats as compared to other mammals is Echolocation.
To learn more about Bats, refer to the link:
https://brainly.com/question/26864497