Wildlife conservationists usually have to grapple with the challenge of revitalising falling numbers of endangered species. But those dedicated to the conservation of Asiatic lions are trying to get their head around a problem of plenty.

The Gir forest region in India's Gujarat, home to the last wild population of Asiatic lions, has too many of these animals within its limited confines, prompting calls for some of the carnivores to be moved to a second habitat within their former and larger historical territory.