You would be forgiven for thinking stories of orphans growing up with wolves were the domain of The Jungle Book or the mythic founders of Rome, Romulus and Remus.

In reality, such tales might not be so far-fetched. In 1965, people living in Spain’s Morena mountains discovered Marcos Rodríguez Pantoja, who has been dubbed the Mowgli of Spain, who had apparently been living in a cave with a pack of wolves.

Pantoja’s mother died when he was young, and his father sold him to a local farmer who also died soon after. Pantoja, who was the subject of a documentary in 2010, estimates he was six when…