Mutation is like Evolution a part of the life in Birthdays the Beginning. While evolution will start a completely new species, the mutation is something slightly different. An example is Asteroxylon, who is a mutated Baragwanathia. Baragwanathia is the first plant growing on land after it evolved from the seaweed Callunia. Asteroxylon then adapted and then migrated to plains where water is scarce.