Word: fishly
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This idea hasn't yet been confirmed by other shark researchers, but they don't dismiss it either. They know that sharks are extremely sensitive to electromagnetic signals; a "sixth sense" lets them home in on faint electricity generated by another fish's movement, gill action or even heartbeat. Indeed, Holland's team in Hawaii routinely tricks baby hammerheads at Coconut Island into striking at electrodes dangling in the water. Adult sharks, apparently drawn by the same process, have been known to bite through undersea cables. Holland is planning to investigate what sorts of electric signal might repel rather than...
While any shark 6 ft. long or more is potentially dangerous to humans, some species are more aggressive than others. None is considered deadlier than the great white. This huge fish, which can exceed 20 ft. in length and 2 tons in weight, is relatively rare among sharks but is responsible for more recorded attacks than any other species. Most of those have occurred off California, in the so-called Red Triangle, which extends from Monterey Bay to San Francisco to the Farallon Islands, 30 miles offshore...
...wearing a black wet suit and flippers, looks something like a seal--a great white will usually turn up its nose at whatever remains. Most other shark attacks are probably also cases of mistaken identity: a swimmer's flapping feet and hands may look like the movements of a fish darting through the water...
Though far less profitable, shark meat has also enjoyed a sales boom since the early 1980s. Tuna and swordfish stocks began to dwindle at that time, and the U.S. government encouraged fishermen to pursue other targets. That may have been a big mistake. Traditional food fish, like cod and tuna, grow quickly and lay millions of eggs at a time. Sharks, by contrast, can take two decades to reach sexual maturity, have a long gestation period and bear only a few young at one time. Killing a relatively small number of females can dramatically limit the reproductive potential...
...shark bobbing in the preternaturally clear Hawaiian sea. I am now in the water, and Meyer has released the measured, tagged shark. Another student stands by to help it get moving, but that turns out to be unnecessary. With an almost imperceptible flick of its muscular tail, the massive fish is suddenly ten yards away, a graceful, pale white torpedo gliding effortlessly down into the measureless blue depths. In the face of such beauty, dignity and grace, I almost forget my fear...