Aging
From SporeWiki, the knowledge base dedicated to Spore
Aging can be presumed from the GDC 2005 video. During the point where the Willosaur city was shown, many people have observed Tripods of various sizes. Another possibility is textures will change as a creature grows from a child to an adult, such as different fur colours as they grow older. In the E3 2006 video Will Wright demonstrated that in the creature stage after the mating evolution occurs you will be born from an egg as a child creature -- an adolescent creature is smaller and, as such, has a different voice and different stats. A baby creature has special algorithms which make things like head size disproportional to the body, as to give it the 'baby' feel instead of just being miniature.
