Encore: How I came to work with the lions who live in trees

Alex Braczkowski is a big cat expert and for years he's been following a rare group of tree-climbing lions, including the charismatic, enigmatic, three-legged Jacob.

Alex fell in love with animals by accident, he'd just been expelled and while his parents were trying to find him a new school, they made him use his time wisely by volunteering at the Johannesburg Zoo.

From there he went to game ranger school, and onto university at a campus nestled in forests at the base of the Outeniqua Mountains, which he shared with dwarf leopards. It was at u...