*** VIDEO AVAILABLE *** JULY TO AUGUST 2015: Skyler has been studying great whites since 2004 shot between July and August, 2015. A GREAT white shark demonstrates the power of its infamous jaws but loses one of its razor sharp teeth in the process. This mesmerising video shows the mechanics of the predators unique mouth, and was filmed by shark educator, Skyler Thomas, from a shark proof cage submerged into the ocean. Most of the footage was shot in Guadalupe, Mexico, South Australia and South Africa, between July and August 2015, and shows the sharks tooth falling out from natural causes. White sharks have five rows of teeth in the bottom and the top of their mouth with 48 ultra sharp fangs at the front. As the most prominent teeth fall out, the next row moves forward like a conveyor belt footage of a white shark's tooth falling out naturally is extremely rare. San Francisco resident Skyler, 41, who started studying the species back in 2004, spoke about how the upper jaw becomes separate from the skull during an attack. PHOTOGRAPH BY Skyler Thomas / Barcroft Media UK Office, London. T +44 845 370 2233 W www.barcroftmedia.com USA Office, New York City. T +1 212 796 2458 W www.barcroftusa.com Indian Office, Delhi. T +91 11 4053 2429 W www.barcroftindia.com (Photo credit should read Skyler Thomas / Barcroft Media / Barcroft Media via Getty Images)
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These are the world's most dangerous sharks (2019)
00:55 - Source: CNN
CNN  — 

A 15-year-old boy died in a suspected shark attack while surfing in New South Wales, Australia, police said Saturday.

“Witnesses have told police a shark attacked the teenager while he was surfing at Wilsons Headland at Wooli Beach, near Grafton,” New South Wales police said in a statement.

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Maggie Wong/CNN

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“Several board-riders came to his assistance before the injured teen could be helped to shore. First aid was rendered for serious injuries to his legs and despite CPR efforts to revive him, the 15-year-old died at the scene,” police said.

Beaches in the area including Wooli, Diggers Camp and Minnie Water have been closed. Police are investigating the incident. This was Australia’s fifth fatal shark attack this year.

Last week, a 36-year-old man in the Australian state of Queensland died after being attacked by a shark while spearfishing.

In June, a shark killed a 60-year-old surfer at Salt Beach near Kingscliff on the far north coast of New South Wales.

CNN’s Angus Watson reported from Sydney, Australia, and Isaac Yee reported from Hong Kong.