Sunday, November 06, 2005

Out of the sidewalk jungle, into the maw of the behemoth

kw: book reviews, nonfiction, sharks, islands, natural history

What do you get when you keep a true-born thrill seeker cooped up in an Editor's job too long? You get a woman who gives a few years of her life, and a small fortune, to obtain short-term residence and proximity for a few months at the South Farallon Island.

Just twenty-seven miles west of the Golden Gate bridge, the Farallon Islands are uninhabited at present, except by a literal handful of researchers. A couple of these study the population of great white sharks that spend about half of their year in the surrounding waters, feeding mainly on the elephant seals, and other seals, that breed there. The islands are called the Devil's Teeth, for good reason, once you see the photos.

Were you ever told that a human in a wet suit looks a lot like a seal, and moves like one that is sick? That probably explains why very few knowledgeable SCUBA divers are willing to dive anywhere west of San Francisco. Even in the off season, there are great whites that pass by.

Susan Casey spent a couple of very short visits (a day trip and a few day-long "internship") on South Farallon. She managed to wangle the loan of a yacht to live on, anchored nearby, for a few months in 2003...until the ship broke its anchor chain and drifted off during a storm. She'd snuck onto the island to have one night in a stable bed, or she'd not be around to write the story. That story, Devil's Teeth: A True Story of Obsession and Survival Among America's Great White Sharks, is exactly as the title bills it.

The researchers she relied on, Scot and Peter, studied the white sharks for nearly twenty years. A few appeared every year of two throughout those years (Great whites seem to live upwards of thirty years). One group of males, called the Rat Pack, stay mostly to the south of the island. A group of females, called the Sisters, stay mostly to the northeast. I found the natural history fascinating. Mature females are bigger, mostly about 18 feet, up to 21 feet long. White sharks are bulky, and the larger ones are over eight feet wide and six feet deep. Mature males are in the 14-16 foot range. In either case, they are big, powerful predators. However, when a pod of Orcas show up—up to 30 feet long and 12 feet wide—the sharks vanish.

I am a quiet sort. I don't live for excitement and risk like Ms Casey does. In her narrative she pulls no punches about the privations she and others experienced. I am indebted to her for opening a window for me, onto a place, and a life, that I would certainly not experience voluntarily.

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