Why would there be a low specific gravity in a golden retriever puppy?

Why do mammals with high respiration need to have a high heart rate? Are dogs invasive species? What is a kong toy? When do panthers have there babies? What is it called when you lend money to a bison? Is sugar gliders and endangered? How does a bearcat protect itself? What is the relationship between the dingoes and plants in Australia? What is causing my feet to go blue when sat down? Can humans founder or have laminitis? Can a badger turn around in its skin? My Puppy Boerboel always bites and hurts me. so i have hit her hard and picked her up by the excess skin on her neck NOW she runs from me and growls when i touch her help please? What are some unusual German foods? How do you drown a whale? What body parts does an elks use to move? What happens if a cat bites you? Do mammals have a low rate orf metabolism? What do you put on a deep cut? What is the primary role of the rabbit in the food chain? Do dolphins swim in herds pack or schools?