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.
The breed weighs between 44 and 66 lb (20 and 30 kg), stands 21 to 26 in (53 to 66 cm) at the shoulder, and comes in liver, chestnut, and occasionally black coats. The ideal coat is harsh, wiry, and dense. The dogs shed very little.