The 93 million-year-old formation, once a chunk of the southern Sierra Nevada, sheared off and slowly edged along the San Andreas fault to the North Coast. It lay undiscovered until the 1850s and wasn't seen by human eyes until 1978.
But the 26-square-mile granite mass known as Cordell Bank is a smorgasbord for scores of species of seabirds and whales that fly and swim thousands of miles to feast on an abundance of food procured by the wind, the Earth's rotation and a southbound current that sweeps along the California coast.
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