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30
Jan '18

Great white sharks congregate every spring in a deep area of the Pacific Ocean known as the white shark Café. Scientists are not sure what the sharks are doing while at the Café but because animals undertake extensive migrations for a number of reasons including escape, dispersal, foraging and reproduction, they cited this as a potential mating area. When the females arrive at the Café only briefly, the males were already patrolling the area in an increased rate of vertical movement.

30
Jan '18

shark bite gape mouth

The shark's ability to inflict killer damage on anything it grabs, however, probably is due to saw-like teeth and not the amount of bite force, the study researchers say. Once a great white clamps down on a prey with its razor-sharp teeth, the shark often shakes the catch from side to side to initiate a sawing action. The jaws work like a set of pliers, where pliers with long handles would let you grab an item with more force than pliers with short handles.

30
Jan '18

 

What’s the view like through the eyes of a shark? That’s what some shark researchers in Australia wanted to know. They used an instrument called a microspectrophotometer to measure light-sensitive cells in the eyes of several shark species. 

"Humans have three cone types that are sensitive to blue, green and red light, respectively, and by comparing signals from the different cone types we get the sensation of colour vision," according to Professor Hart, of the University of Western Australia who led the study.
"However, we found that sharks have only a single cone type and by conventional reckoning, this means that they don't have colour vision. It does not necessarily mean that sharks see in black and white, but they’re certainly color-blind.

30
Jan '18

Each year, great white sharks that forage in waters off the central California coast migrate as much as 2,500 miles (4,000 km) over the open ocean, to other feeding grounds in the Pacific Ocean. A team of scientists investigating the tracks of four great white sharks, using data from satellite tags, have found evidence that these non-stop journeys are fueled by lipids, or fat, stored in the sharks’ large livers.

30
Jan '18

2017/18 BLUE FLAG STATUS AWARDED TO 62 OF SA’S TOP BEACHES, SUSTAINABLE TOURISM BOATS AND MARINAS

Says Vincent Shacks, WESSA Ecotourism Manager: “Blue Flag is an excellent example of what is achievable when the government, both local and national, partner with civil society. The programme encourages adherence to very high, international standards for beaches, boats and marinas."

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Shark Cage Diving Map


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Contact Details

No. 8 Swart Street, Kleinbaai, Gansbaai, South Africa

GPS: 34° 36'52"S - 19º 21'18"E

Phone: +27 (0) 28 384 1418

Mobile: +27 (0) 83 300 2138

E-Mail:  brian@sharkcagediving.net

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