Some animals learn to make new sounds
If you happen to be walking through Australian bush, you might hear a loud, deep rumbling sound that conjures images of a ferocious wild boar – and no one could blame you for panicking and running for dear life.
You might feel a little sheepish, though, after learning the sound came from a cute little koala (Phascolarctos cinereus).
These wily marsupials are not the only animals to make sounds that defy their body size, called “dishonest signalling” by biologists.
Published by Cosmos.
