Becoming Fearless: Study Finds Major Changes to Domesticated Bunny Brains

The process of domestication fundamentally changes an animal's looks and behavior. Floppier ears and a loss of fear of humans, for example, are nearly universal in domesticated species. Now, researchers have learned what domestication looks  like in the brain—at least, for rabbits. It's not exactly clear when rabbits were converted from one of nature's most skittish animals into the soft, snuggly buddies so often chosen as class pets. But somehow, selective br