A different coloured species of dinosaur pops out of each egg hatched, but unfortunately that's as varied as this board book gets. It's very, very repetitive, and I feel as though it would have been better at engaging children and teaching them colours if it had incorporated the hatching into more of a story, rather than just repeating the exact same words on each page. That being said, the cut out egg shapes did really entertain our daughter - she enjoyed sticking her finger through the whole on the front of the book more than she enjoyed us reading it to her.