Shark Deterrent! How Close Is Too Close?

Earlier this month, some scientists published a paper on the effectiveness of electrical field deterrents on Great White Sharks: How Close is too Close? The Effect of a Non-Lethal Electric Shark Deterrent on White Shark Behaviour Ryan M. Kempster, Channing A. Egeberg , Nathan S. Hart, Laura Ryan, Lucille Chapuis, Caroline C. Kerr, Carl Schmidt,…

Deep Sea Skates – New Species Discovered!

According to a scientific paper published on 13th July 2016 – a new species of deep-water legskate was recently described by scientists Weigmann and Stehmann. When scientists discover a new type of animal it is called ‘describing’ because they have to put together a description of the animal that allows other scientists to be able…

ScienceTrooth – An Interview With A Shark Scientist

In the first of what we hope will be a regular feature, we have given 10 questions to a real, live scientist with shark experience to discover what it is really like working with these animals. Sharktrooth is delighted that our first candidate is Mariah Pfleger, from Oceana. Oceana is a global organisation that is…

SharkWeek Activity – Sex A Shark

This shark week – why not try identifying which sharks on screen are boys and girls? Male sharks have two finger-like parts underneath their body called ‘claspers’. Females instead have an opening called a ‘cloaca’. When you watch shark week do you see more males or females? The best time to see this is looking…

Why Sharks Don’t Go To The Dentist

Shark teeth are covered in fluoride which makes them cavity-resistant. A study published in the Journal of Structural Biology in 2012 discovered that the enamel on sharks teeth is actually made up of a chemical called fluoroapatite. Fluoroapatite is resistant to acid produced by bacteria so this means that shark’s teeth don’t decay. Also, most…

New GuitarFish Discovered?

Scientists Peter R. Last, Bernard Séret and Gavin J.P. Naylor are proposing a revised classification of the guitarfish based on materials collected from the South China Seas. Taxonomy and classification is how we understand different animals that are closely related and taxonomy is the science of defining groups of biological organisms (animals) on the basis…

Elephant Shark Helps Humans

Scientists looking into how shark skeletons develop, have come across an interesting discovery. They believe that studying the spines of a group of animals called chondrichthyans, which are fish with cartilage instead of bone, could help in understanding human skeletal heterotopic disorders. Zerina Johanson, Catherine Boisvert, Anton Maksimenko, Peter Currie, Kate Trinajstic are the scientists…

2015 NOAA Survey – With Added Heroes!

The longest running coastal shark research survey along the East Coast has completed its 2015 field work, capturing and tagging more than 2,800 sharks, the most in the NOAA survey’s 29-year history. The results are very good news for shark populations. Another memorable tale from the 2015 survey In addition to the record number of…