Funny video 528

Dogs have a higher metabolism than humans. They breathe faster, pump blood faster, mature faster, and have a higher normal body temperature Young dogs seem to have more energy than children. However, this high metabolism comes with a short lifespan. Dogs are generally much better at conserving heat than at cooling themselves. In sled dogs, who can survive outdoors even in bitterly cold temperatures, the fur acts as an insulating “blanket” that retains the heat generated by the dog’s high metabolism Dogs can see movement and light much better than people. In the retina of the eye, dogs have more of a specific type of cell called a rod, which is good at collecting dim light, so they have better night vision