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…

The Tale of a Tail

From Dr Dirk Schmidt comes an excellent description of how sharks use their tails: “The large upper terminal dorsal lobe provides a combination of slow speed cruise ability cruise and suddenly to burst into a powerful surge when in pursuit of fast prey. Tails are especially modified to handle and enable different uses such as…

Surprise Shark In Norway

During Halibut fishing in Norway, Max de Vreeze had a bite but lost the fish after a short battle. The underwater camera did however catch the attacker on film, and to his huge surprise it was no Halibut that got hooked… The film revealed a shark, rarely caught in Norwegian waters. The Porbeagle (a smaller…

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…

Hammerhead Rescue!

Two brothers on Florida’s Gulf Coast rescue a 10ft Hammerhead Shark with their bare hands. They noticed that the animal was injured and had several large fishing hooks in its mouth and steel fishing line tangled around its head: Posting alongside his uploaded video on YouTube, one of the brothers wrote: “Me and my brother…

North Carolina Shark Incidents

There is a great article on the Discovery website about this at the moment. You can read the full article here. Rather than join in the general mass media hysteria, Discovery have taken the trouble to get expert opinions on why there have been several incidents with people getting hurt recently. (Sharktrooth would like to…

The Scary Truth About Sharks

The scariest truth about sharks is that they are under threat from us and we could lose them from the oceans. Sharks are an ‘apex-predator’ meaning that they are at the top of their food chain and as such, have a vital role in the eco-system. Sharks kill around 10 people per year, whilst people…

New Shark Discovered!

Exciting News! A new species of shark has been discovered! Recently discovered in the southwestern Indian Ocean, the Dusky Snout Catshark (Bythaelurus naylori) is one of 10 recognised species of Bythaelurus (Catshark): Bythaelurus alcockii Garman, 1913 (Arabian catshark) Bythaelurus canescens Günther, 1878 (Dusky catshark) Bythaelurus clevai Séret, 1987 (Broadhead catshark) Bythaelurus dawsoni S. Springer, 1971 (New…

You’re Gonna Need A Bigger Boat!

Some scientists have a reputation for being laboratory nerds – but as this video shows – some of them have to be fearless explorers when it comes to getting close to some of the planet’s most dangerous animals. People like Jeff Kurr and Andy Casagrande prove that when it comes to studying a formidable creature…

European Sharks & Rays In Danger of Extinction!

A new report from the International Union for the Conservation of Nature states that more than 40% of sharks and their cousins, rays and chimaeras, currently living in European waters are in danger of extinction. The full report – published here – goes on to list overfishing and bycatch as two of the main contributing factors….