How is This Even Possible?

This vintage picture has been making the rounds of the internet in the past couple of days, but it was first posted three years ago by redditor jordanofthehill. His grandfather raised the animals from infancy and as they never had to catch their own food, it never occurred to the lion and the bear that lunch was walking between them. As a further example, here is a picture of jordanofthehill's father as a young boy. Link