One year in a cat is equivalent to 15 years in a human. Cats generally enter their senior years around 10 years old, which is equivalent to about 15 years in a human. Therefore, a cat's lifespan is relatively shorter compared to a human's.
Cats typically reach adulthood around 1 to 2 years old, which is equivalent to about 20 years old in humans. Therefore, cats reach adulthood relatively late compared to humans.
