Snow Monkeys
Video: Snow Monkeys Grooming

The troop that grooms together, stays together: Get to know the social ins and outs of individuals within a 160-member snow monkey troop led by Kuro-san, a young male still new to the job and something of a solitary grouch.

Snow Monkeys airs Wednesday, April 23 at 8 p.m. (ET) on PBS (check local listings).

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