The Newfoundland's extremely large bones give it mass, while its large musculature gives it the power it needs to take on rough ocean waves and powerful tides. These dogs have huge lung capacity for swimming extremely long distances and a thick, oily, and waterproof double coat which protects them from the chill of icy waters. The double coat makes the dog hard to groom, and also causes a lot of shedding to occur. The droopy lips and jowls make the dog drool, especially in high heat. There are several health problems associated with Newfoundlands. They also get elbow dysplasia, and cystinuria (a hereditary defect that forms calculi stones in the bladder).
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