A Port Orange boy celebrating his birthday with a sleepover at SeaWorld Orlando was bitten on the hand Sunday morning by a dolphin he was petting. This is the second incident in three weeks in which a dolphin bit a child at SeaWorld's Dolphin Cove, a popular dolphin-petting attraction. It took two adults to pry the dolphin's mouth open so that 7-year-old Hunter Hovan Quidor's hand could be freed, his mother Hollie Bethany said.