this can happen if a fertilized egg (an egg that has already joined with sperm) splits into two separate cells that will each turn into a separate living plant or animal. Because they started from the same fertilized cell, every gene is the same in the DNA of both twins... more
By Karla Moeller
Illustrated by Sabine Deviche
There is an old story told to this day about a land filled with colorful monsters. In this mysterious world lived a family of monsters with a brother and sister, Matt and Matilda. Matt and Matilda shared everything – their monster toys, their monster candy, and even their monster dolls and trucks.
