Lions Do Not Live in Jungles
The African lion, Panthera leo, lives almost entirely on open grassland and scrubland, the savanna. Dense jungle canopy is the territory of leopards and tigers, not lions. The confusion likely originates from colonial-era English, where 'jungle' was used loosely to mean any wild, untamed land, not the specific closed-canopy forest biome the word now describes. When British hunters returned from Africa in the 19th century calling the lion king of the jungle, they meant king of the wild. The word 'jungle' just happened to be the available shorthand for wilderness. It stuck, and the biology got lost in translation.