What's the difference between a Hippopotamus and a Limosine? Do they have similar glands? I mean, do they drip hormones or oil to mark their territory? (I have seen limosines dripping oil... but Hippopotomi, do they just poop? And is it large poo or small poo - similar to that of an elephant but with a lighter color and perhaps lacking in....beetles.)

If so - why don't they learn French?