They grow up to 16 inches and weigh up to 35 pounds, and is considered to be one of the world's most beautiful tortoises. This basic "tortoise" body shape consists of a high-dome, a blunt head and elephantine feet. The legs, feet, and head are yellow except for a black patch on top of the head. The shell (carapace) of the radiated tortoise is brilliantly marked with yellow lines radiating from the center of each dark plate of the shell, hence its name. This "star" pattern is more finely detailed.