That they are, for anyone wondering why they are called "the King of the Jungle" despite mainly inhabiting open grasslands, the word Jungle derives from the Hindi word "Jangal" which can mean desert, forest, wasteland or uncultivated land, in this use it makes perfect sense.

The British English use of the word Jungle has long stood for dense tropical rain-forest, i'm not sure how or why it was changed from it's original meaning but in this use it makes very little sense for a Lion.