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…

Sharkwater:Extinction – A Mission To Save Sharks

A few years back, Sharktrooth watched a film called Sharkwater. It was one man’s incredible journey beneath the surface of the finning industry into some deep and disturbing areas. This film was a documentary and the dangers faced by Rob Stewart were very real, which is why some of it is filmed from his hospital…

Hammerheads & Whale Sharks Becoming Extinct

The IUCN (International Union for the Conservation of Nature) has just updated its Red List of Threatened Species. Sadly, due to human impact, two shark species have shown a dramatic drop in numbers – sufficient to move them from “Near Threatened” to “Endangered” rating – only one step away from “Critically Endangered”. After that, the…

Happy Fin-dependence Day!

After an exciting Shark Week we would like to wish our American Sharkies a Happy 4th of July and remind everybody that sharks need your protection 52 weeks of the year.

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…

2016 The Year Of The Shark

There are lots of ways you can take action to make 2016 The Year Of The Shark. Let’s make a stand and start fighting for the sharks and our oceans this year, or next year may be too late… Visit our Friends page to see the different shark and marine conservation organisations you can get…

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…

Shark V Lion

Sharktrooth is interested in how people perceive sharks and just how deserved their terrible reputation is. Is it really true that popular opinion is based on how ‘fluffy’ something is? If someone took a walk across sub-Saharan Africa and they saw a lion – would you expect them to demand all lions in the area…

Who’s The Daddy?

An academic paper was published last week by scientists S. Corrigan, D. Kacev & J. Werry on one of Sharktrooth’s favourite shark species – the Shortfin Mako (latin name Isurus oxyrinchus). The title of this paper is “A case of genetic polyandry in the shortfin mako”. This article documents a case of genetic polyandry in…