New Study Suggests Coastal And Deep Ocean Sharks Have Different Feeding Patterns

2018-01-24T09:57:32+00:00 January 24, 2018|

(Credit: UMass Amherst) An international team of researchers studying globally declining shark populations report today that they used carbon isotopes as biochemical markers in shark muscle tissue to identify where in the oceans the mobile predators have been feeding, in the hope that such analyses provide a useful tool for conservation. Details [...]

Megalodon Ancestor: Fossil Teeth Link Beast To Earth’s Largest Shark

2018-01-16T10:20:42+00:00 January 16, 2018|

It took nearly 40 years, but researchers have finally collected enough fossil teeth in Alabama to properly identify a previously unknown species of ancient shark — one that was a possible ancestor of megalodon, the largest shark to ever exist. (From Live Science/ By Laura Geggel) -- The newly identified mega-toothed shark lived about 83 million [...]

The Public Fear Sharks Less When They Understand Their Behaviour

2017-12-15T13:27:27+00:00 December 15, 2017|

(Credit: University of Sydney) Researchers surveyed more than 500 visitors to an aquarium 'shark tunnel' to understand how attitudes to sharks and government shark policies can change. An experiment involving more than 500 visitors to an aquarium 'shark tunnel' has shown the public's fear of sharks reduces when they learn about the species [...]

International Whale Shark Research Program Uses NASA Algorithm To Identify, Track Animals

2017-12-06T15:17:13+00:00 December 6, 2017|

Whale shark gliding off Sail Rock in the Gulf of Thailand. (Credit: iStockphoto/Dirk-Jan Mattaar) An international research project tracking whale sharks is being praised as a unique collaboration using 'citizen science' and NASA technology. (From ABC News Australia/By David Weber) -- The project relied on people sending in photos, taken over many years [...]

Human Teeth Traced To Fish Scales, Cambridge Scientists Say

2017-11-21T15:59:46+00:00 November 21, 2017|

Teeth grew from the scales of primitive shark-like fish millions of years ago, research by scientists suggests. Old lineage cartilaginous fish like sharks, skates and rays that have skin which contained small spiky scales or "dermal denticles" may be the key, scientists say.

Alligators Eat Sharks — And A Whole Lot More

2017-11-03T11:55:11+00:00 November 3, 2017|

Alligators don’t just stick to freshwater and the prey they find there. These crafty reptiles can live quite easily, at least for a bit, in salty waters and find plenty to eat — including crabs, sea turtles and even sharks.

First Successful Wild Whale Shark Health Assessments Performed

2017-08-23T14:12:55+00:00 August 23, 2017|

For the first time ever, scientists successfully performed health assessments, including collecting blood and biological samples, taking measurements and attaching satellite tracking tags, to a population of wild whale sharks -- the world's largest fish, classified as "endangered" since 2016. The research advancement, which occurred in Indonesia's remote Cendrawasih Bay, has significant implications for unlocking the mysteries surrounding the overall health of whale sharks -- including the potential impacts of tourism on their health. These details can better inform future conservation policies to protect and encourage their population recovery.

The Ocean’s Fastest Shark Is Being Threatened By Over Fishing

2017-08-11T11:43:30+00:00 August 11, 2017|

A new study using satellite tracking by researchers from Nova Southeastern University's Guy Harvey Research Institute (GHRI), the University of Rhode Island and other colleagues shows that the fishing mortality rate of the shortfin mako in the western North Atlantic is considerably higher than previously estimated from catches reported by fishermen. These data suggest that this major ocean apex predator is experiencing overfishing, raising serious concerns about whether the current levels of fishery catches in the North Atlantic are sustainable.

Fossil Shows New Fish Species That Looked, Ate Like Shark, Scientists Say

2017-08-09T13:13:52+00:00 August 9, 2017|

ELKO, Nev. -- A fossil found in northeastern Nevada shows a newly discovered fish species that scientists believe looked, and ate, like a shark. The fossil is what remains of a bony, sharp-toothed fish that would have been about six-feet-long (1.83 meters) with long jaws and layers of sharp teeth. The type of jaw and teeth on the fish suggest it would have chomped down on its prey before swallowing it whole, like a shark, the Reno Gazette-Journal reported.

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