Ponies are all heart, aren't they?! They give you cuddles when you're feeling sad, whinny at you to say hello and do whatever you ask of them - well, most of the time, anyway! Plus, they always know how to make you feel better.

They must have reeeeeaaaally big hearts to do all of that, but do you know exactly how much a pony's heart weighs?

Here's the answer!

Well, it really depends on the size of your pony, but the average pony's heart weighs 3.6kg! That's the equivalent of a fully-grown cat! Blimey.

Learn all about the horse's circulatory system in July PONY!