This video was sponsored by 23andMe. Hi, this is Emily from MinuteEarth. Domestication has puppified dogs, fluffified sheep, and spotified horses – but there’s a less obvious physical change that virtually all domesticated animals share: shrunken brains. Duck brains have shrunk by about 15%, cat brains by 30%, and pig
♪Intro♪ As kids, lots of us watched cartoons or read books with animals as the main characters. And even though we knew those stories weren’t real, because animals don’t really speak English or drop Acme safes on each other, they definitely spread some weird misconceptions about certain species. Hopefully a
Behavior is action in response to a stimulus. My cat Cameo is now responding to both an external stimulus the sound of a bag of treats, and an internal stimulus her hunger, or at least her insatiable desire for treats. Sometimes animal behavior can seem really far out, but if
Every day thousands of our dogs and cats take trips to the veterinarian for skin problems, allergies, infections, various diseases, and cancer. These conditions all have a primary cause. However, another disorder may be adding to the problem that of a poorly functioning immune system. Hello, I’m Doctor Bill Barnett.