Source: Marine Science Today, 21st June 2011 

In October of 2009, I began hearing reports of encounters between local San Diego divers and Sevengill sharks,notorynchus cepedianus. Having been diving locally since 2000, I thought this unusual, since this was the first I had heard of these encounters in nearly a decade. Between 2000 and 2006, almost no reports were documented. But in 2007, that all changed and they began appearing the dive lists, one here, two there, until it was obvious that something was happening.

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