A new study used underwater drones to study the immediate effects of catch-and-release fishing activities can have on sharks. Even when a released shark appears healthy during release, it may still be at risk for post-catch mortality. The study, published in the Journal of Experimental Marine Biology and Ecology, determined that a shark’s ability to swim […]
Mapping completed for white shark genome
Scientists from Nova Southeastern University’s Shark Research Center and the Guy Harvey Research Institute successfully decoded and mapped the genome of the great white shark. The joint study, which also included researchers from Cornell University College of Veterinary Medicine, and Monterey Bay Aquarium and published in the latest issue of the journal Proceedings of the National […]
Great whites may have beat out megalodon in battle for survival
According to new research published in the Journal of Life and Environmental Sciences, megalodon sharks likely went extinct at least one million years earlier than previously thought and direct competition with great whites might be to blame. A team of researchers led by vertebrate paleontologist Robert Boessenecker from the College of Charleston-South Carolina, analyzed fossil occurrence of […]
Sharks facing even bigger predator in Cape Town
Large, predatory sharks occupy the top of ocean food chains, where they play important roles in maintaining diverse and healthy ecosystems. The loss of these predators can therefore have significant impacts on ecosystems. For a long time broadnose sevengill sharks have occupied the apex of the food chain alongside the more famous great white […]
Whale sharks may eat plants, according to new study
Whale sharks, the world’s largest fish, likely endure periods of starvation and may eat more plants than previously thought, according to the first results of a new health check developed at the University of Tokyo. Ocean scientists now have a powerful, simple tool to discover the diets, migrations, and conservation needs of this endangered species. […]
Gigantic shark species a result of evolutionary adaptation
A news study from Swansea University found that for a species of shark to become giant, it would need to first evolve adaptations that enhance feeding. This includes its ability to control body temperature or become a filter feeder. Swansea University’s Dr. Catalina Pimiento and associates examined the biological traits of all elasmobranchs and ran a […]
Was megalodon the world’s largest scavenger?
Was Carcharocles megalodon, the monstrous whale eater and star of so many books and movies, an obligate scavenger? Best-selling paleo-fiction author Max Hawthorne believes that, while younger Megalodons were active hunters, adults got the lion’s share of their calories from drifting whale carcasses. “It comes down to physics and tooth morphology,” said Hawthorne, who does extensive marine life […]
Do sharks sneeze?
By Jane Williamson, Associate Professor in Marine Ecology, Macquarie University When an animal sneezes, it’s their way of getting rid of annoying bits and pieces that have floated inside their nose and mouth. While many animals, including humans, elephants, pandas and even seals, can sneeze, sharks unfortunately cannot. To be able to sneeze, an animal […]
Study: Sharks become less nimble as they age
Just like old uncle Frank, several species of sharks tend to become slower and less agile as they age, a new study from Florida Atlantic University has found. In a a joint effort by FAU’s Charles E. Schmidt College of Science and the National Oceanic and Atmospheric Administration’s National Marine Fisheries Service, scientists examined cartilage mechanics […]
Fossil record used to discover ‘lost shark’
A new species of whaler shark, Carcharhinus obsolerus, has been identified based on three specimens originally collected from the Western Central Pacific in the 1940s. William White, Peter Kyne and Mark Harris described their findings in the latest issue of the journal PLOS One. The researchers believe that this species might already be extinct, however, which is why they […]
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