"If you get them to stop responding to scary things, they stop responding to other scary things."

Apparently rats raised at Disney aren't prepared for the real world.

A new study warns that Florida's efforts to breed endangered Key Largo woodrats in captivity are doomed. Critters brought up at a Tampa zoo and at Orlando's Disney World don't have as many babies as they do in the wild, and when released back into their natural habitat, the rats are more vulnerable to predators like hawks and feral cats.

Read more at Livescience.