Best natural sonar system – Bats & dolphins
Bats and dolphins find their way in complete darkness, or murky waters, using a biological sonar system called echolation. This involves emitting ultrasonic chirps (or clicks) and interpreting the echo the sound waves make after bouncing off objects and other creatures in their vicinity.
Echolation is so accurate that with each chirp, a bat or dolphin can tell the location, size, direction and even the physical nature of an object.
If you’re an insect flying 15-
An echolating dolphin can detect a 2.5 cm object, such as a big coin, from over 70 metres away.
Would you like to know what you can detect with your ears? Click to find out!