Lion SpeciesThese kings of the jungle can weigh between 250 and 550 pounds, depending on sex and age and can grow up to be 14 years old in the wild and over the age of 20 years old in captivity. They become capable at hunting at the age of two and are fully grown after 5 or 6 years. Male lions are distinguishable for their impressive manes, which signifies their masculinity and reflects their health. The darker and thicker the mane, the healthier the lion. It allows the lions to appear stronger and frightening to warn off enemies, particularly humans, and appeals to lionesses that are scientifically proven to mate more with lions with thick and dark manes. Lions with no manes are either genetically inbred or have been castrated.White LionThe legendary white lion was once thought to be a figment of one's imagination until less than fifty years ago, when white lion cubs were discovered. This is due a recessive gene and they are not albino as they do have pigmentation in vital parts such as they eye, paw and lip. Their condition is called leucism meaning they only have pigmentation loss in the skin and fur. There are less than fifty white lions in the world.