A new study from the University of Alabama, which will be presented at the 2019 American Physical Society Meeting in Boston later this month, found that specialized scales on the mako shark’s fins and along its flank help the predator reach speeds of nearly 80 miles per hour. They found tiny — approximately 0.2-millimeter in […]
The evolution of megalodon’s perfectly adapted teeth
The perfectly shaped cutting tools that were the teeth of the mighty megalodon were the result of millions of years of evolution, according to a new study published in the Journal of Vertebrate Paleontology. Victor Perez, a doctoral student in geology at the Florida Museum of Natural History, analyzed 359 fossilized teeth found in […]
Are sharks color blind?
We’ve known since early last year that sharks are most likely colour-blind. But today, in a paper published in Biology Letters by our team at UWA, we explain why this is the case. It’s a finding we believe could help prevent shark attacks and other negative encounters between these marine predators and humans in the […]
Chemical fingerprints of plankton unlock shark feeding habits
Across the globe, sharks have been hit hard by fishing and habitat destruction, which has led to declines in many populations. Marine conservation efforts are increasingly focused on managing particular regions to prevent certain kinds of fishing, or to restore a certain habitat, within their boundaries – things like marine protected areas. So knowing how […]
Despite endothermic biology, white sharks prefer to take it slow
A new study by the National Institute of Polar Research in Japan found that great white sharks, despite body temperatures that are often warmer than their surroundings, prefer to hunt seals and other prey at slower speeds. These findings, published in this month’s Journal of Experimental Biology, are in contrast to how most endothermic predators hunt. The […]
Drones reveal shark behavior following catch-and-release
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 […]
Study: Loss of great white sharks alters entire ecosystems
A new study has documented unexpected consequences following the decline of great white sharks from an area off South Africa. The study found that the disappearance of great whites has led to the emergence of sevengill sharks, a top predator from a different habitat. A living fossil, sevengill sharks closely resemble relatives from the Jurassic […]
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 […]
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