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Join Nat Geo WILD as it journeys with one of the world's most fearsome-looking species, the ragged tooth shark, on an epic fight for survival. Each year, hundreds of ragged tooth sharks swim more than 900 miles along the South African coast in order to mate. For one captive female ragged tooth, Kima, the stakes are even higher she is being released into the wild for the first time in 20 years. Follow Kima's incredible journey along the coast as she feeds, mates and prepares to give birth.