Current Sharks News and Events

Current Sharks News and Events, Sharks News Articles.
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Whale Sharks show remarkable capacity to recover from injuries
A new study has for the first time explored the extraordinary rate at which the world's largest fish, the endangered whale shark, can recover from its injuries. The findings reveal that lacerations and abrasions, increasingly caused through collisions with boats, can heal in a matter of weeks and researchers found evidence of partially removed dorsal fins re-growing. (2021-02-23)

New study finds climate change shrinks and shifts juvenile white shark range
Unprecedented sightings of juvenile white sharks at the northern end of Monterey Bay signal a significant shift in the young white sharks' range. Researchers conclude the northward range shift demonstrates the young sharks are being subjected to a loss of suitable thermal habitat, meaning water temperatures within their preferred temperature range are becoming harder to find. (2021-02-09)

'Virtual anatomy' imaging yields new insight into ancient platypus fish
The inner ear of a 400 million-year-old 'platypus fish' has yielded new insights into early vertebrate evolution, suggesting this ancient creature may be more closely related to modern-day sharks and bony fish than previously thought. (2021-01-27)

New findings on devonian 'platypus fish' cast light on evolution of modern jawed vertebrates
New findings on the brain and inner ear cavity of a 400-million-year-old platypus-like fish cast light on the evolution of modern jawed vertebrates, according to a study led by Dr. ZHU Youan and Dr. LU Jing from the Institute of Vertebrate Paleontology and Paleoanthropology (IVPP) of the Chinese Academy of Sciences. (2021-01-27)

Southern Africa's most endangered shark just extended its range by 2,000 kilometers
A team of marine scientists led by the Wildlife Conservation Society (WCS) has confirmed that southern Africa's most threatened endemic shark - the Critically Endangered shorttail nurse shark (Pseudoginglymostoma brevicaudatum) - has been found to occur in Mozambique; a finding that represents a range extension of more than 2,000 kilometers (1,242 miles). (2021-01-26)

Dinosaur-era sea lizard had teeth like a shark
New study identifies a bizarre new species suggesting that giant marine lizards thrived before the asteroid wiped them out 66 million years ago. (2021-01-19)

Spectacular fossil discovery:
A team led by Sebastian Stumpf from the University of Vienna describes an well-preserved skeleton of the ancient shark Asteracanthus. This rare fossil find comes from the famous Solnhofen limestones in Bavaria, which was formed in a tropical-subtropical lagoon landscape during the Late Jurassic, about 150 million years ago. The almost complete skeleton shows that Asteracanthus was two-and-a-half meters long, which makes this ancient shark one of the largest of its time. The study is published in Papers in Palaeontology. (2021-01-14)

Research reveals how teeth functioned and evolved in giant mega-sharks
A pioneering study by University of Bristol researchers finds that the evolution of teeth in the giant prehistoric shark Megalodon and its relatives was a by-product of becoming huge, rather than an adaptation to new feeding habits. (2021-01-13)

Future too warm for baby sharks
As climate change causes the world's oceans to warm, baby sharks are born smaller, exhausted, undernourished and into environments that are already difficult for them to survive in. (2021-01-12)

Study finds future too warm for baby sharks
A new study conducted at the New England Aquarium finds that as climate change causes the ocean to warm, baby sharks are born smaller, exhausted, undernourished, and into environments that are already difficult for them to survive in. (2021-01-12)

Megalodons gave birth to large newborns that likely grew by eating unhatched eggs in womb
A new study shows that the gigantic Megalodon or megatooth shark, which lived nearly worldwide roughly 15-3.6 million years ago and reached at least 50 feet (15 meters) in length, gave birth to babies larger than most adult humans. (2021-01-10)

Shark fishing bans partially effective
Bans on shark fishing are only partially effective in protecting sharks, new research suggests. (2020-12-17)

Primitive fish fossils reveal developmental origins of teeth
Teeth and hard structures called dermal odontodes are evolutionarily related, arising from the same developmental system, a new study published today in eLife shows. (2020-12-15)

Silky sharks find hope in Atlantic, remain targets in Indo-Pacific
Florida International University research shows that conservation efforts in the Atlantic Ocean may be working for one of the most popular -- and endangered -- species that ends up in the global shark fin trade. (2020-12-09)

Satellite tag tracks activity levels of highly migratory species across the vast ocean
MIAMI--Scientists at the University of Miami (UM) Rosenstiel School of Marine and Atmospheric Science and Wildlife Computers, Inc. today announced the release of a new activity data product application for marine animal tracking. The technology is designed to remotely track and transmit data gathered on an animal's activity levels over several months along with the temperatures and depths they experienced. (2020-12-04)

Genomic analysis of mako shark reveals genes relating to tumor suppression in humans
Genetic mapping of the shark's liver and eye tissue showed overexpression of nine genes known for action in tumor suppression, wound healing, and probable monochrome vision. The species is considered globally endangered and caught on a large scale by industrial fishing vessels. (2020-12-01)

Prehistoric shark hid its largest teeth
Some, if not all, early sharks that lived 300 to 400 million years ago not only dropped their lower jaws downward but rotated them outwards when opening their mouths. This enabled them to make the best of their largest, sharpest and inward-facing teeth when catching prey, paleontologists at the Universities of Zurich and Chicago have now shown using CT scanning and 3D printing. (2020-11-18)

Smaller earthquakes "with ambition" produce the most ground shaking
An earthquake of magnitude 8.0 or larger will almost always cause strong shaking, but a new study suggests that smaller earthquakes--those around magnitude 5.5 or so--are the cause of most occurrences of strong shaking at a 60-kilometer (37-mile) distance. (2020-11-04)

Leaving more big fish in the sea reduces CO2 emissions
Leaving more big fish--like tuna, sharks, mackerel and swordfish--in the sea reduces the amount of carbon dioxide (CO2) released into the Earth's atmosphere.This is because when a fish dies in the ocean it sinks to the depths and sequestrates all the carbon it contains with it. This is a form of 'blue carbon'. Big fish are about 10 to 15 percent carbon. (2020-10-28)

Body size of the extinct Megalodon indeed off the charts in the shark world
A new study shows that the body size of the iconic gigantic or megatooth shark, about 15 meters (50 feet) in length, is indeed anomalously large compared to body sizes of its relatives. (2020-10-05)

Biggest fish in the sea are girls
Female whale sharks grow more slowly than males but end up being larger, research suggests. (2020-09-16)

New shark research targets a nearly endangered species
They are some of the most iconic and unique-looking creatures in our oceans. While some may think they look a bit ''odd,'' one thing researchers agree on is that little is known about hammerhead sharks. Thanks to a team of researchers, that's all changing. (2020-09-15)

Ancient bony fish forces rethink of how sharks evolved
Sharks' non-bony skeletons were thought to be the template before bony internal skeletons evolved, but a new fossil discovery suggests otherwise. (2020-09-07)

True size of prehistoric mega-shark finally revealed
A new study led by the University of Bristol and Swansea University has revealed the size of the legendary giant shark Megalodon, including fins that are as large as an adult human. (2020-09-03)

Common species mirror rare animals' response to global change
A study of more than 2,000 species reveals animal populations around the world - from the very common to endangered species - are going up and down as global change alters land, sea and freshwater ecosystems. (2020-09-02)

Scientists catalogue shark and ray distribution in Florida lagoon
A study is the first long-term, in-depth analysis of the elasmobranch community in Florida's Indian River Lagoon and develops capacity to understand how these species may respond to further environmental changes. From 2016 to 2018, researchers caught 630 individuals of 16 species, including two critically endangered smalltooth sawfish. Results showed that many elasmobranchs use the southern Indian River Lagoon throughout their life histories and the area may serve as an important nursery habitat for multiple species. (2020-08-25)

Ichthyosaur's last meal is evidence of triassic megapredation
Some 240 million years ago, a dolphin-like ichthyosaur ripped to pieces and swallowed another marine reptile only a little smaller than itself. Then it almost immediately died and was fossilized, preserving the first evidence of megapredation, or a large animal preying on another large animal. (2020-08-20)

Analysis: Health sector, big pharma spent big on lobbying for COVID-19 funding
To date, Congress has authorized roughly $3 trillion in COVID-19 relief assistance -- the largest relief package in history. With more COVID relief money on the way, a new analysis in the Journal of General Internal Medicine finds these newly available funds led to a significant surge in health sector lobbying activity, especially within the pharmaceutical industry. (2020-08-12)

Between shark and ray: The evolutionary advantage of the sea angels
Angel sharks are sharks, but with their peculiarly flat body they rather resemble rays. An international research team led by Faviel A. López-Romero and Jürgen Kriwet of the Institute of Palaeontology has now investigated the origin of this body shape. The results illustrate how these sharks evolved into highly specialised, exclusively bottom-dwelling ambush predators and thus also contribute to a better understanding of their threat from environmental changes. The study is published in the journal Scientific Reports. (2020-08-04)

Reef sharks in decline
Though many people find them intimidating, menacing or just plain scary, sharks are vital to the health of the world's oceans. (2020-07-23)

Plastics found in sea-bed sharks
Microplastics have been found in the guts of sharks that live near the seabed off the UK coast. (2020-07-22)

Sharks almost gone from many reefs
A massive global study of the world's reefs has found sharks are 'functionally extinct' on nearly one in five of the reefs surveyed. (2020-07-22)

Life in the shallows becomes a trap for baby sharks
Baby reef sharks tolerate living in the sometimes-extreme environments of their nurseries -- but these habitats face an uncertain future which may leave newborn sharks 'trapped'. (2020-07-21)

Study first to show tiger sharks' travels and desired hangouts in the Gulf of Mexico
From 2010 to 2018, scientists tagged 56 tiger sharks of varying life stages to track their movements via satellite. Movement patterns varied by life stage, sex, and season. Some of their core habitats overlapped with locations designated by NOAA as Habitat Areas of Particular Concern and also were found near 2,504 oil and gas platforms. Findings may help inform studies into potential climate change, oil spills, and other environmental impacts on tiger shark movement in the Gulf of Mexico. (2020-07-15)

Scientists trace the origin of our teeth from the most primitive jawed fish
An international team of scientists led by Uppsala University (Sweden), in collaboration with the ESRF, the European Synchrotron (France), the brightest X-ray source, has digitally 'dissected', for the first time, the most primitive jawed fish fossils with teeth found near Prague more than 100 years ago. The results, published today in Science, show that their teeth have surprisingly modern features. (2020-07-09)

Advanced technology sheds new light on evolution of teeth
The evolution of our teeth began among ancient armoured fishes more than 400 million years ago. In the scientific journal Science, an international team led by researchers from Uppsala University presents ground-breaking findings about these earliest jawed vertebrates. Using powerful X-ray imaging, they show that unique fossils found near Prague contain surprisingly modern-looking teeth. (2020-07-09)

Great white shark diet surprises scientists
The first-ever detailed analysis of the diet of great white sharks has shown they spend more time feeding at the seafloor than many would have expected. (2020-06-07)

First fossil nursery of the great white shark discovered
An international research team led by Jaime A. Villafaña from the Institute of Palaeontology at the University of Vienna discovered the first fossil nursery area of the great white shark, Carcharodon carcharias in Chile. This discovery provides a better understanding of the evolutionary success of the largest top predator in today's oceans in the past and could contribute to the protection of these endangered animals. The study is published in the journal Scientific Reports. (2020-05-22)

Ecosystem diversity drives the origin of new shark and ray species
Biologists how different oceanographic conditions in the Gulf of California and the Baja California Peninsula influenced formation of new species of sharks and rays. (2020-05-19)

Can't touch this! Video shows blacktip sharks use shallow water to flee huge predators
Aerial drone footage provides the first evidence of adult blacktip sharks using shallow waters as a refuge from a huge predator - the great hammerhead. Before this study, documentation of adult sharks swimming in shallower waters to avoid predation did not exist. Unmanned aerial vehicles enable scientists to unobtrusively observe behaviors in the wild, providing insight into seldom-seen predator-prey interactions. When it comes to sharks, this 'hammerhead' time video proves you 'can't touch this.' (2020-05-13)

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