Complex sentence: Sometime later, a new generation of dinosaur hatches, along with Aladar and Neera's children, while the lemurs find more of their kind, before embarking on a new life together.
Split into simpler sentences: Sometime later, a new generation of dinosaur hatches, among them are Aladar and Neera's children. The lemurs find more of their kind, and soon they begin embarking on a new life together.