A run-of-the-mill dog's sense of smell is roughly 100 times greater than a human's. A good hound dog's nose is perhaps 300 times better.Dr. George Stevenson, a former neurosurgeon who specializes in bear physiology, has found that a bear's scent system is at least seven times better than the hounds. �A polar bear will...
Grizzlies are sniffing champs of the wild
