The human ear can detect sound waves vibrating at frequencies up to 20,000 times a second. But dogs can hear sound waves that vibrate at frequencies of more than 30,000 times a second. Contrary to popular belief, the cat is a social animal. A pet cat will respond and answer to speech, and enjoys human companionship. Unlike humans and dogs, cats do not suffer a lot from loneliness.
Cats are social to a degree, but they are far more concerned with territorial issues.
The gene in cats that causes the orange coat is linked to the X chromosome. This gene may display orange or black. Thus, a female cat with two X chromosomes may have orange and black colors in it's coat. A male, with only one X chromosome, can have only orange or black, not both. Dogs cannot see as well as humans.