For 50 days, eight teenage girls survived on a deserted island after their plane crashed, as part of a controlled social experiment. Under the same circumstances, the male control group lasted 37 days, but more of their demons were self-created than anyone would like to admit. “The Wilds,” the survival thriller which returned to Amazon Prime Video last week for its second season, picks up almost immediately after the end of the first with the two groups of young castaways battling the conditions and their own problems on their respective islands. “Being stranded on a deserted island definitely…