Shark attack headlines in South Africa.

Shark populations have been in trouble for decades due to overfishing. In 2009, the International Union for the Conservation of Nature (IUCN) Redlist released a report from its Shark Specialist Group that and found that 32 percent were threatened with extinction. The report called on governments to increase protections of sharks through science based catch limits, end shark finning and improve monitoring and research, among other recommendations.

Shark attack headlines in South Africa.

Contains some recreations of shark attacks that appear to be fakes similar to FACES OF DEATH.

killing great white shark - Daily Mail Online

Fletcher says that based on bite marks and witness reports it was likely a great white, and that an effort is under way to find and kill the shark (though the hunt was ended today due to rough seas). "Obviously if we find a shark with a spear in it that's clear cut but that's probably unlikely," he says. Perth Now notes a sizable shark was seen a number of times at nearby Cheynes Beach in the week before the attack. In his Instagram profile, Jay called himself "a salty young dog" whose "thing" was spearfishing and fishing; pictures of the recent high school grad posing with fish he caught are peppered across social media. Jay is the eighth shark victim in five years; more recently, a and this man was killed while swimming. In October, a surfer in a suspected great white attack.

Looking for answers to the three shark attacks in …

Because sharks shed so many teeth during their lifetimes, there are many shark teeth out there. In the middle ages and shark teeth have also been used throughout history to make weapons. But once you find a shark tooth, what can it tell you about the shark itself? Some scientists compare the shapes of ancient shark teeth to those found on modern sharks to look for similarities suggesting that they are related species. This method doesn't always work, however, making it very difficult to figure out how ancient fossilized sharks are related to modern ones.


Mexican Shark Attacks Fuel Pacific Coast Panic - The …

Shark fin soup is considered a delicacy in many Asian countries, once reserved only for the wealthy or for very special occasions. But rising incomes in Asia are having a . To make the soup, the are sliced off and the rest of the body is tossed back in the water, dead or alive: a method called . It's estimated that 100 million sharks are killed annually to supply fins for soup. Fins from great whites can fetch the highest prices because of their rarity and size. In Hong Kong, Taiwan and China, and are leading campaigns to stop serving shark fin soup. (.)

by the dwindling shark population along Mexico ..

The lamnoid sharks (order Lamniformes)—including the great white, mako and thresher sharks, among others—also can trace their lineage into the Cretaceous. But paleontologists don't have a good sense of which ancient sharks species evolved into modern lamnoid sharks. Their ancient ancestors left behind many fossilized teeth, but there isn't an easy way to put them in order without more information provided by fossilized skeletons. One well-known extinct relative of modern lamnoid sharks is the Megalodon (), which was more than 50 feet long with seven-inch teeth and lived 16 million years ago. (It went extinct 1.6 million years ago.) For many years, some scientists believed that the Megalodon was an ancestor of the great white shark—but . It is likely that the Megalodon and great white sharks even coexisted, with the Megalodon feeding primarily on whales and the great white on seals.

Shark attacks are relatively rare in Mexico

With over 500 species of sharks, there are many different shark sizes and shapes. The largest shark (and also largest fish) is the gentle whale shark (Rhincodon typus), which can reach lengths of 39 feet (12 meters). The smallest is the dwarf lantern shark () clocking in at only 8 inches long. This tiny shark is found in deep waters off the coasts of Columbia and Venezuela. In between there are hundreds of large and small sharks with various shapes and with a multitude of important ecological roles in the ocean.

.An essay or paper on Shark Killing in Mexico.

Around the same time lived the Ginsu Shark ()—a slightly smaller shark, at 20 feet (6 meters) long, but much more fearsome. The Ginsu is one of the better-known ancient sharks because paleontologists found a nearly complete fossilized spine for the species, along with 250 very impressive teeth. They were very sharp, 6 centimeters long, and likely used to kill and eat larger fish prey. Ginsu teeth have been found embedded in pleisiosaur and mosasaur bones, suggesting that they may have gone after small marine reptiles as well.

Q. Roo environmentalists move against shark killing – …

Dozens of have been installed off the east coast of South Africa and Australia. These nets are meant to protect swimmers from rare attacks. The nets entangle, suffocate and kill sharks as well as indiscriminately kill other animals -- like rays, turtles, dolphins and whales.