There is always a bigger fish. A new study by the Monterey Bay Aquarium found that even great white sharks, one of the most formidable predators in the ocean, have something to fear. According to the research, which also included research partners from Stanford University, Point Blue Conservation Science and Montana State University and published […]
White sharks can tolerate toxic levels of heavy metal
A recent study by researchers from University of Miami Rosenstiel School of Marine and Atmospheric Science found that great white sharks were able to tolerate high levels of heavy metals that would be considered toxic to other marine animals. Using blood samples taken from great whites off the coast of South Africa, the researchers found […]
Humans may soon regrow teeth just like a shark
Sharks are the ultimate predators of the aquatic realm thanks to one character in particular – teeth. Not only are shark’s teeth razor sharp but they are also constantly regrown throughout life, gradually replaced like a conveyor belt of rows of teeth, and not just when they are worn down or fall out. This is […]
Cartilage skeletons an evolutionary adaptation for sharks
Sharks are one of the oldest and least changed of all the living back-boned jawed creatures. But because their skeletons are made of cartilage much of their early fossil record is poor. Cartilage is a rubbery tissue that forms the framework for bones to ossify (harden) upon. It’s why babies have rubbery legs when they […]
New species of lantern shark discovered
Nearly three decades after it was first found, a specimen of deep-water, bioluminescent shark has been named a distinct species. University of Rhode Island shark researcher Bradley Wetherbee, who was among the researchers that originally studied the specimens that were inadvertently caught in the Northwestern Hawaiian Islands in 1988, named the new species Etmopterus lailae […]
New study shows more genetic data on sharks needed
The headlines are eye-catching: Scientists have sequenced the genome of white sharks. Or the bamboo lemur, or the golden eagle. But why spend so much time and money figuring out the DNA makeup of different species? I am an evolutionary biologist at the Florida Program for Shark Research. Our research focuses on understanding how modern […]
Specialized scales propel mako sharks to top speeds
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 […]
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 […]
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