The ancestors of modern-day Labradors lived in fishing villages on the coastline of Newfoundland. These incredible dogs worked all day long in freezing waters, swimming out to retrieve stray fish, ropes or whatever else their master wanted. All that time spent doggy paddling in rough seas created a super fit and energetic dog. It's these traits that make our pet Labs seem a bit loopy and hyperactive. Labradors have bottomless reserves of energy when it comes to having fun!