Years ago, I lost my own personal pit bull to a fast growing brain tumor. Unfortunately, in both human and veterinary medicine, brain tumors can result for no known reason. While genetics and environment may potentially have a role, the underlying cause for brain tumors is typically unknown.
The Havanese does not have to be really light. Depending on the size of a Havanese the weight ranges from 7-22lbs. I own a very athletic agility Havanese that stands 11â³ at the withers. She weighs 18-20lbs depending on how much training she does and her muscle mass. From the AKC Standard.
Bernese mountain dogs get pretty big,the males can get to 90-120 pounds,and the females 70 to 100 pounds.The height is normally 25-27.5 inches for the males and 23-26 inches for the females.Sometimes you can tell how big the puppy will get by the size of it's paws.