Animal or Child?

My nephew (the youngest of my brother's 2 sons):

- Always cries crocodile tears
- Walks like an elephant
- Is like a rhino when on his tyke
- Acts like he has worms in his ass
- Mumbles & pouts like a fish
- Is as cheeky as a monkey
- Is as stubborn as a mule

And I'm yet to see other traits of his... :P