The most mesmerising sound I’ve ever heard was a massive salt water croc snapping it’s jaws shut – it’s not like you expect it to sound like, it’s a bit like two massive cricket bats being hit together really hard, it’s VERY loud too.
I was at Austrialia Zoo and it was leaping out of the water at a bit of chicken on a string.
One of the most mind blowing things I’ve ever witnessed.
Worst sound? Car crashes easy, even small ones (crashes not car park taps) are a million times louder than you think they should be and hard to explain the sound if you’ve not witnessed it.