How Bats Recognize Their Own “Bat Signals”


Bats use sonar to navigate. Just like humans they have unique ‘voices.’ But just like humans, they can only distinguish a certain amount of sounds at once. Think about it, you recognize your voice and the voice of family members and close friends. But have you ever tried to pick out someone’s voice in a crowded auditorium full of excited people talking?

How do bats recognize their own echoing voice clicks when they are surrounded by hundreds of fellow clicking bats?

Tel Aviv University has an interesting article on this and the ramifications of the findings:

A new Tel Aviv University study published in Proceedings of the Royal Society B: Biological Sciencesidentifies the mechanism that allows individual bats to stand out from the crowd. The research, by Dr. Yossi Yovel of TAU’s Department of Zoology, finds that individual bats manage to avoid noise overlap by increasing the volume, duration and repetition rate of their signals.

According to Dr. Yovel, unlocking the mystery of bat echo recognition may offer a valuable insight into military and civilian radar systems, which are vulnerable to electronic interference.

Read the full findings at