Asiatic lions tend to be much bigger, according to the World Wildlife Federation (WWF). They weigh 300 to 500 lbs. (120 to 226 kg) and are 6.56 to 9.18 feet (200 to 280 cm) long. Their tails measure 23.62 to 35.43 inches (60 to 90 cm).
Male lions are generally larger than females and have a distinctive mane of hair around their heads. The mane's function is to make the male look more impressive to females and more intimidating to other males, according to the San Diego Zoo. The mane also protects the male's neck during fights over territory or mating rights.