20 Of The Cutest Maine Coon Kittens – The Gentle Giants, Waiting To Grow Up

A Maine Coon is often described as having a rectangular body. This just means that they are broad chested, muscular, and well-built, not svelte and lanky like some cats. They are late bloomers and don't fully fill out until they are three to five years old, unlike typical cats who mature by their first birthday.