Hippos (not pygmies) are enormous, deceptively adorable, incredibly aggressive (they charge at basically everything at up to 30mph and kill about 500 people a year), and also they do a helicopter with their tail when they shit, so it sprays everywhere. Please note that one of their defense mechanisms is immediately releasing a powerful stream of diarrhea.

They also sweat a reddish mucus-like substance that is sometimes called "blood sweat", so that's fun.