It’s a Doggy Instinct to Fetch. Many dogs, including Labradors, were specifically bred to retrieve certain items for their human owners. Even now, that means that many dogs still have this ingrained disposition to chase after objects, pick it up in their mouth and bring it back to you. This feature has been an ingrained part of being a dog for literally tens of thousands of years. While it’s unlikely that your family sends your Lab out hunting for food like we did in the past, your pup will still have inherited some of the retrieving skills passed down by their ancestors. And, of course, chasing and retrieving are two of the components of a successful game of fetch. Fetch Makes Dogs Feel Good, thanks to this inbuilt disposition for chasing and retrieving, many dogs are likely to get hooked quickly when they’re first introduced to fetch as it’s something that they’re already naturally good at. All of these behaviors are self-reinforcing, meaning they make the dog feel good. They don’t need to be rewarded for the behavior. Additionally, it’s a great form of exercise for your Lab and – just like with humans – their brain will release a dose of feel-good hormone Serotonin while they exert themselves.