The coat is extremely low-maintenance, short, hard, and smooth to the touch, and may range from charcoal-blue to mouse-grey to silver-grey or even blue-grey. Where the fur is thin or non-existent, inside the ears or on the lips for example, the skin should be pinkish rather than white or black. The Weimaraner is an energetic hunting dog, prized for its physical endurance and stamina, with a strong, instinctive prey-drive. It may tolerate cats but usually does not, tending to follow the urge to hunt—no matter how long it has known a particular cat—and likely to chase and kill any small animal that enters the garden. A Weimaraner requires frequent exercise and will appreciate games and play. An active owner is more likely to provide the vigorous exercise and games required.