I used to be more in favor of morphs than I am now. Some of the species where folks get really morph crazy are starting to show real immune system problems. Bearded dragons, leopard geckos and cornsnakes being the prime example. All of these guys are having problems with endemic adenovirus, paramyxovirus, and crypto and inbreeding is the suspected cause of their low disease resistance.
Most animals that have gone through the pet trade have been exposed to these pathogens and are fully capable of fighting them off, but the leos, beardies and corns get sick at a much higher rate.
The Zombie Mama is here!