bats and how they fly in the dark

Bats are in the dark a lot.  How do they do it, you ask.  The answer is radar.  Bats can fly around without hitting into things because they send out radar and it comes back like an early warning system.  I think it would be fun to be a bat.

-ok kid I got your report on bats done, now give me $5

That aint even worth a buck. I could get the same info from that bum who lives on the subway.