66K views · 1.4K shares | Have you ever heard a Koala bellow before? Brace yourself, it is INCREDIBLE! This is the sound big boys make when calling out for a female in the breeding season!  | Tim Faulkner | Facebook

75K views · 3.4K reactions | What is that noise?! Male koalas produce unusually deep bellowing or grunting vocalizations due to a special sound-producing organ not found in any other land mammal. Both male & female koalas can make types of bellowing calls, though it’s usually made by males looking to attract a mate! | Tim Faulkner | Facebook

NAUGHTY NATIVES: Did you know a male koala thrusts exactly 42 times during mating? Every koala. Every time. What role does a rubber cricket bat grip play in koala artificial insemination? And what do you do with a randy echidna that injures itself trying to mate with inanimate objects? Find out the answers to these questions and more here: http://www.abc.net.au/news/2017-02-14/naughty-natives-love-life-of-australian-animals/8265026 Meanwhile, witness the cacophony of a koala mating call at Curru