Question

Are bats blind or are they all on radar

Answer 1

bat aren't blind, but they can use echolocation to find their way around...radar use electromagnetic waves to determine the location of objects.

Answer 2

Bats are not blind
Since many kinds of bats hunt insects at night, they have an additional trick called echolocation for finding their way in the dark. The bat uses its mouth to create sounds that bounce off nearby objects, just like a moth.
Hope I helped :P