The manes make them look really big so that they can scare off other males that might want to fight them. Female Lions do not have manes. Both sexes are very muscular and powerful. They have very long teeth and claws that they use to catch and eat their prey. Male lions are about 7 feet long and can weigh up to 550 lbs.
Females are a bit smaller.
Unlike most big cats, Lions are social and like to live in groups called prides . A pride of Lions is made of one or more families and can have up to 37 members. There may only be one male to a pride but usually there are a few. Male Lions will fight outsiders in order to keep their pride. If they are defeated, the intruding male Lion may take over the pride.