How sea turtle hatchlings know where to crawl

By Sid Perkins, 15:57 PM April 15, 2008

From Acapulco, Mexico, at a meeting of the American Geophysical Union

Field tests suggest that newly hatched sea turtles need a variety of senses, not just sight, to find their way to the ocean.

The female black sea turtle (Chelonia agassizi) buries her eggs in sand 100 meters or so from the shoreline. As soon as the hatchlings emerge, they head for the water. Most previous studies of how these young creatures find their way into the surf have focused on the role of visual cues such as moonlig...

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