OSTIONAL, Costa Rica - A beachgoer in Costa Rica happened upon an amazing sight: hundreds of sea turtles making their way onshore to lay their eggs.Jairo Quiros Rosales was at Ostional Beach on Sunday when scores of olive ridley sea turtles began crawling up on the sand.Rosales said the turtles synchronize their egg-laying, in what's called an "arridaba" or large-scale nesting.Related: St.
Louis Zoo says python laid 7 eggs without male helpAccording to the US Fish and Wildlife Service, breeding colony populations of olive ridley sea turtles are considered endangered on the Pacific Coast of Mexico, while all others are listed as threatened.The turtles get their name for the olive color of their shells, and are one of the smallest of the sea.