Latest Great white shark Stories
Docile filter-feeder is the second largest known shark speciesNOAA's Fisheries Service has designated the eastern North Pacific basking shark, a "species of concern" because it has suffered a dramatic decline in population despite decreasing fishing pressure. The label "species of concern" may be given to a species when there are concerns regarding the population status.The eastern Pacific basking shark is not being considered for listing pursuant to the Endangered Species...
The waters surrounding Australia and Japan are home to the greatest variety of aquatic lifeforms, and crustaceans such as crabs, lobsters, crayfish and shrimp are the most common species in the world's seas, according to the findings of the Census of Marine Life.The information, which was disclosed in a series of articles published Monday in the open access journal PLoS ONE, comes from a decade-long effort by more than 360 scientists to catalog species in 25 different regions, ranging from...
NEW YORK, June 28 /PRNewswire-FirstCall/ -- Gaiam, Inc., a leading producer of lifestyle media, announced today the release of the most anticipated hit title of the year - Discovery Channel's Shark Week: Jaws of Steel Collection. Available on DVD and high-def Blu-ray Disc, this special compilation of never-before-released programs premiered on Discovery as a part of the highly anticipated and highly rated Shark Week event, which has been captivating fans for more than 20 years. Shark...
The robust jaws and formidable teeth of some of our ancestors and ape cousins may suggest that humans are wimps when it comes to producing a powerful bite: but a new study has found the opposite is true, with major implications for our understanding of diet in ancestral humans.The surprise findings suggest that early modern humans did not necessarily need to use tools and cooking to process high-nutrient hard foods, such as nuts - and perhaps less tough foods such as meat - but may have lost...
Shark attacks are most likely to occur on Sunday, in less than 6 feet of water, during a new moon and involve surfers wearing black and white bathing suits, a first of its kind study from the University of Florida suggests.Researchers analyzed statistics from shark attacks that occurred in Florida's Volusia County, dubbed the "Shark Attack Capital of the World," between 1956 and 2008. They also spent a year observing people between Daytona Beach and New Smyrna Beach, said George...
The ancestor of all hammerhead sharks probably appeared abruptly in Earth's oceans about 20 million years ago and was as big as some contemporary hammerheads, according to a new study led by the University of Colorado at Boulder.But once the hammerhead evolved, it underwent divergent evolution in different directions, with some species becoming larger, some smaller, and the distinctive hammer-like head of the fish changing in size and shape, said CU-Boulder Professor Andrew Martin of the...
Rejection of Scientific Data for Other Threatened Sharks Undermines Conservation Effort DOHA, Qatar, March 23 /PRNewswire-USNewswire/ -- Government delegates attending the meeting of the Convention on International Trade in Endangered Species (CITES) voted today to list porbeagle sharks in Appendix II of the treaty, but rejected protections for three other vulnerable shark species. An Appendix II listing requires exporting countries to ensure that international trade is legal and will not...
A docile wobbegong, a species of carpet shark that usually avoids humans, was mistaken by witnesses as a juvenile great white, after seeing the fish grapple with a surfer in the waters off the coast of Sydney. AFP reports that surfer Paul Welsh was treated for cuts at a hospital and had a tooth removed from his leg. The attack led authorities to temporarily close Mona Vale Beach, where the 46 year-old surfer and his 10 year-old son encountered the six-foot fish. Steve Whan, state minister of...
Hit-and-run attacks by sharks can be solved with a new technique that identifies the culprits by the unique chomp they put on their victims, according to a University of Florida researcher and shark expert.In a method analogous to analyzing human fingerprints, scientists can make identifications by precisely comparing shark bites to the jaws and teeth of the powerful predators, said George Burgess, director of the International Shark Attack File, which is housed at UF's Florida Museum of...
The white shark may be the ultimate loner of the ocean, cruising thousands of miles in a solitary trek, but a team of researchers has discovered that the sharks have maintained such a consistent pattern of migration that over tens of thousands of years the white sharks in the northeastern Pacific Ocean have separated themselves into a population genetically distinct from sharks elsewhere in the world."White sharks are a large, highly mobile species," said Salvador Jorgensen, a...
Latest Great white shark Reference Libraries
The Cookiecutter shark, Isistius brasiliensis, also known as the cigar shark or luminous shark, is a small rarely-seen dogfish shark. Anatomy and morphology The Cookiecutter sharks often glow green and grow up to 20 in (50 cm) long. The underside of the shark is bioluminescent, glowing a pale blue-green that matches the background light from the ocean's surface that serves as camouflage to creatures beneath it. However, a small non-luminescent patch appears black deceiving the shark's...
The Basking shark, Cetorhinus maximus, is the second largest fish after the whale shark. The basking shark is a cosmopolitan species - it is found in all the world's temperate oceans. It is a slow moving and generally harmless filter feeder. Like other large sharks, basking sharks are at risk of extinction due to a combination of low resilience and overfishing through increasing demands for the sharks' fins, flesh and organs. Taxonomy This shark is called the basking shark because it...
The Lemon shark, Negaprion brevirostris, is a well studied shark belonging to the family Carcharhinidae. Distribution and habitat It is found mainly along the subtropical and tropical parts of the Atlantic coast of North and South America. Reproduction Lemon sharks are viviparous, females giving birth to between 4 and 17 young every other year in warm and shallow lagoons. The young have to fend for themselves and remain in shallow water near mangroves until they grow larger. With...
The Oceanic whitetip shark, Carcharhinus longimanus, is a large pelagic shark of tropical and warm temperate seas. It is a stocky shark, most notable for its long, white tipped rounded fins. This aggressive but slow-moving fish dominates feeding frenzies, and has attacked more humans than all other shark species combined "” it is a notable danger to survivors of oceanic ship wrecks and downed aircraft. Recent studies have shown that its numbers are in steep decline "” its large fins...
The Bull shark, Carcharhinus leucas, also known as the Bull whaler, Zambezi River shark or colloquially Zambi, is common worldwide in warm, shallow waters along coasts and well-known for its unpredictable, often aggressive behavior. They have a tolerance for fresh water that is unique among marine sharks, and can travel far up rivers, posing a threat to those who venture into the water. As a result they are probably responsible for the majority of attacks on humans that take place near the...
