A Mathews County veterinarian hand-delivers the first sand tiger shark pup to be born in captivity. According to 13News Now Dr. Bob George delivered the pup in Myrtle Beach, South Carolina. Baby Rip is making waves among marine biologists because sand tiger sharks are critically endangered. Rip’s doing well now, growing in a tank with other small sharks and rays. Dr. George said learning how to breed vulnerable animals in captivity helps boost their overall numbers.