There's an Ouch in my Pouch! by Jeanne Willis
Willaby Wallaby is not happy. There's an ouch in the pouch and it's making him grouch! So off he hops to the Blue Billabong to find a new home. Mummy Wombat and Mummy Possum can't help, but the Billabong becomes scary when Willaby bumps into Ma Dingo. You and I know that a dingo has no pouch, but Ma Dingo is as cunning as a fox . . . run for your life, little Willaby, run! Willaby bounces back to his mum, but when he learns that the ouch is just his new little sister, he realises that maybe he doesn't need a pouch after all. He's a big boy now and likes being free to do bounces and hops! A truly entertaining story about toddler behaviour and the discovery of independence.