What are your favourite animal facts or anecdotes?

I love to hear and share random facts and interesting trivia about animals, be it their physiology, behaviour, social lives, or if your pet has done something smart/funny/cute…Do tell! If you have an interesting source for yours for further information or book recommendations (in easy to read/layman’s terms rather than scientific journals, for example Bats Sing, Mice Giggle by Shanor and Kanwal) I’d love to hear them too.

Here’s one to start off: wombats can run up to 40 km/hr!