e green sea turtle demonstrates considerable navigational skill, though the mechanisms by which it accomplishes this are uncertain. The green turtles that nest at Tortuguero show a fidelity to their home beaches, where they return to nest. Turtles tagged at Tortuguero have been recaptured at feeding grounds dispersed throughout the Caribbean and as far north as Florida, but no turtle in more than 30 years of tagging has ever been found nesting anywhere else but at Tortuguero (5:100). Females deposit egg clutches on high-energy beaches, most commonly on islands, digging a deep nest cavity above the highwater line. Green turtles mate in the water off the nesting beaches. It is believed that males migrate to the nesting beach every year. Females emerge
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