Cats typically are full grown by their first birthday. Their bones stop growing by eight months, but sexual maturation takes another four months. During the second year, a cat's frame fills out, but his bone structure is set.
Growth speed is slower in some breeds. Larger breeds like Savannah and Maine Coon, for example, take three to five years to reach their full growth and often weigh 30 pounds or more. Just like humans, cat genetics play a big part in the size of a cat. A cat may stop growing or grow more slowly if their nutritional requirements are lacking.Learn More
Cats age comparatively slower than dogs but still at much faster rates than humans. For instance, the first year of a cat's life is usually considered to be the equivalent of 15 to 18 years in a human, while a 2-year-old cat is about 24 in human years.Full Answer >
The number of kittens born per litter depends on the age of the cat and her past breeding experiences. Approximately one to eight kittens are born in each litter, but most cats give birth to four to six kittens at a time.Full Answer >
Boys stop growing at the end of puberty, which tends to be around age 16 for most boys. Growth stops when the growth plates of the bones fuse, which is triggered by hormonal changes at the end of puberty.Full Answer >
Most males have reached their full height by age 16, but their muscles still grow. Much of the height increase comes from a growth spurt between ages 12 and 16. During this period, boys often add as many as 12 inches. They also put on weight, and this gain typically ranges from 15 to 65 pounds.Full Answer >