What do they do with all the poo at the zoo? - Audio Story Three Hundred and Ninety Four

What do they do with all the poo, from all the animals at the zoo? The hippos, the tigers, the kangaroos - what do they do with all that poo? There's so much poo at the zoo... Where does it all go? Do they mix it into chocolate ice-cream? --- Send in a voice message: https://anchor.fm/chris-charlton0/message