Latest

Unlocking the secrets of the Greenland Shark

One of the dreams of any naturalist is to be the first to find and detail the life of a hidden or unknown animal first hand. Since 2003, scientific divers with the Greenland Shark and Elasmobranch Education and Research Group (GEERG) have begun to unravel the mysterious life of the Greenland shark, which at over seven meters in maximum body length and exceeding a ton in weight, is the second largest carnivorous shark after the great white.

Seth Casteel Portfolio

Buster the Cavalier King Charles Spaniel, by Seth Casteel

Move over human divers, you’re not the only ones who love to dive. Apparently, divers these days are not just of the hominid kind—American photographer, Seth Casteel, has captured the astounding and often humorous side of our canine companions who love to dive underwater.

Malpelo Island

Three of world’s best shark spots are located far off the coast of Central and South American, in the eastern Pacific Ocean. The least known of them, the tiny Colombian island of Malpelo, together with Galapagos and Cocos, create a “golden triangle” for big fish fans.

What are the risks, really?

Experience of life suggests that anything which is fun tends to be either illegal, immoral, fattening or dangerous. Recreational diving partly conforms to this universal law, ranking below hang gliding and parachuting but above most sports in regards to the risk of a fatal accident.

One might suppose that shark teeth are harder than human teeth but they are not.
One might suppose that shark teeth are harder than human teeth but they are not.

Why sharks don't get cavities

To gain a better understanding of how sharks manage to keep their teeth in such pristine condition, a team of German researchers looked at two species that eat in very different ways

The researchers looked at Isurus oxyrinchus and Galeocerdo cuvier (mako and tiger sharks) and found, as they explain in their paper published in the Journal of Structural Biology, after very close examination, that the outer coating of the shark teeth contained one hundred percent fluoride.

HMS Poseidon
HMS Poseidon

China secretly salvaged British submarine

China's claim that the hull of the vessel contained no human remains, identity tags, watches, rings or other personal items has provoked anger among relatives of the men who died

On 9th June 1931 HMS Poseidon was exercising 20 miles north of her home base of Wei Hai Wei when the steamer Yuta was spotted some distance away. Despite excellent visibility, the two vessels collided and the submarine sank within two minutes.

The newly discovered seamount rises to just 40 metres (131ft) below the surface
The newly discovered seamount rises to just 40 metres (131ft) below the surface

Seamount found in the Red Sea

Yemeni fishermen evidently knew the mount existed – Echo found a dhow anchored on its summit as she carried out her survey of the area.

But existing charts of the area suggested the sea was 385 metres (1,263ft) deep – but over an eight-hour period, Echo collected reams of information with her sounders to prove otherwise.

After processing all that information, 24 hours later the powerful computers aboard the ship produced the stunning 3D imagery which revealed the true extent of the mount.

Israel: Journey Beyond the Three Seas

On my first flight to Israel, I stretched out in a comfortable chair on EL AL Airlines, enjoyed a kosher meal and reread notes by the famous Russian traveller and pioneer explorer, Afanasiy Nikitin (circa 1466-1472). Only on the approach to Tel Aviv did I suddenly realize how small a country Israel was, and that it bordered three seas.