Asexual reproduction may have contributed to the blue shark's decline off the Irish coast.

In 2010, Greenpeace International added the school shark, shortfin mako shark, mackerel shark, tiger shark and spiny dogfish to its seafood red list, a list of common supermarket fish that are often sourced from unsustainable fisheries.

Alarm over overfishing

They eat shark.

Whale shark in Mozambique.

The crocodile shark ( Pseudocarcharias kamoharai ) is a species of mackerel shark and the only member of the family Pseudocarchariidae.

And they said, Blue, blue, we love blue. Let's do it blue.

We didn't see a single shark.

We can save the white shark.

Tom is a shark.

Have you ever seen a shark?

He was attacked by a shark.

Tom was attacked by a shark.

Hey there, boys! Where's that shark?

Tom got attacked by a shark.

The princess was eaten by the shark.

Indigo and turquoise were changed to royal blue.

Jim Toomey Learning from Sherman the shark

We also talked about the White Shark Cafe.

There's a shark in the water, she whispered.

So we start with white, blue, blue, white.

And I flew over a lagoon with a shark in it, and that was the day that my comic strip about a shark was born.

Cerro Azul ( blue hill in Spanish and Portuguese) may mean any of several different places Cerro Azul, Veracruz, in Mexico Cerro Azul, Panama Cerro Azul, Peru Cerro Azul, Paraná, Brazil Cerro Azul, Misiones, Argentina Cerro Azul (Ecuador volcano), a volcano in the Galapagos Cerro Azul (Chile volcano), a volcano in Chile, aka Quizapu

The perception of sharks as dangerous animals has been popularized by publicity given to a few isolated unprovoked attacks, such as the Jersey Shore shark attacks of 1916, and through popular fictional works about shark attacks, such as the Jaws film series.

The mantle was originally purple, but varied during the 17th and 18th centuries between celestial blue, pale blue, royal blue, dark blue, violet, and ultramarine.

One is to try and work out the gender of the shark.

Look at that lovely, black shark slime.

Turns out that this is a Galapagos Shark.

It actually basks. It's a slow moving shark.

Many shark species are threatened with extinction.

Out of more than 470 species, only four have been involved in a significant number of fatal, unprovoked attacks on humans the great white, oceanic whitetip, tiger, and bull sharks.

We're often all frightened of sharks thanks to Jaws.

Go up in your boat and tag the shark.

There's only 8,000 basking shark females in the world?

So I was thinking that must have come from the shark.

It became known as Simon's shark slime.

This is a very sort of un shark like photograph.

That's a 12 foot long giant sixgill shark.

A surfer was eaten by a shark in Australia.

Suddenly we saw a shark swimming our way.

Is it blue?

The sky is as blue as blue can be.

They are eating a pizza with blue sausage and blue sauce.

So you can quite easily tell the gender of the shark.

If you're more interested, we have a basking shark website now just set up.