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A stingray's barb (ruler in mm). The barb is covered with rows of flat spines, composed of vasodentin. Vasodentin is an incredibly strong cartilaginous material which can easily cut through flesh. The undersides of the spines contain two longitudinal grooves which run along the length of the spine and enclose venom-secreting cells.
Stingrays, including the cownose ray, can pose a low to moderate risk to humans. Rays will lash their tails when threatened, posing a risk of being whipped. If threatened, the cownose ray can also use their barb as a weapon to sting the aggressor. A sting from a cownose ray can cause a very painful wound that requires medical attention once stung.
On 4 September 2006, Australian zookeeper, conservationist, and television programmer Steve Irwin was killed by a stingray while filming in the Great Barrier Reef.The stingray's barb pierced his chest, penetrating his thoracic wall and heart, causing massive trauma.
A Florida woman is recovering after a stingray impaled her back and came within an inch of her lung with one of its barbs. Kristie Cataffo-O’Brien had to undergo surgery to remove the stinger ...
Deaths from stingray venom are rare, but the most notable example is “Crocodile Hunter” Steve Irwin, who died after a short-tailed stringray’s barb pierced his heart in 2006.
“A 7 cm (2.75-inch) stingray barb was found piercing the top of the right lung,” the nonprofit network wrote in an April 4 Facebook post. “The barb possibly came from a southern or roughtail ...
The stinger of a stingray is known also as the spinal blade. It is located in the mid-area of the tail and can secrete venom. The ruler measures 10cm. Stingrays are not usually aggressive and ordinarily attack humans only when provoked, such as when they are accidentally stepped on. [34] Stingrays can have one, two or three blades.
A stingray impaled one beachgoer with a barb, and a second person was also stung while in ankle-deep water at Daytona Beach, a Florida official said. ... Stingrays are often found in coastal areas ...