How Do Big Sharks Beat Cancer? Animals Biology Health Oceanography 

How Do Big Sharks Beat Cancer?

By Kate Stone @GotScienceOrg Wouldn’t it be great to have the power to rapidly heal from injuries or to resist cancer? A human with those coveted abilities might be viewed as the stuff of superhero fantasy. However, there are animals on earth that are known for rapid healing and cancer resistance—sharks. Could we possibly learn how sharks do it and copy them? Scientists from Nova Southeastern University (NSU) have unveiled the results of a new genomics study of shark DNA. The study of great white and great hammerhead shark DNA…

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How Do Shark Teeth Bite? Animals Physics 

How Do Shark Teeth Bite?

By Kate Stone For as long as humans have walked the earth, we have been fascinated by shark teeth. Sharks are famous for their biting skills. These predatory fish are equipped to efficiently dismantle prey including marine mammals, sea turtles, and seabirds. Sharks have been around for approximately 450 million years and haven’t changed a whole lot in that time. Today there are more than 400 species of sharks, and each has uniquely shaped teeth. Some are triangular, some have deep notches or curves, and others are shaped like spikes.…

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Small spotted catshark (Hans Hillewaert) Animals Oceanography 

Sharks May Have Personalities

Do sharks have social personality traits? According to a new study, they do. Some sharks act more gregarious and have strong social connections. Others are more solitary and prefer to remain inconspicuous. A team from the University of Exeter and the Marine Biological Association of the UK (MBA) has been studying the behavior of spotted catsharks and have reported evidence of personalities. Personalities are known to exist in many animals, and are usually defined by individual characteristics such as how exploratory, bold or aggressive an individual is. Darren Croft, of the…

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