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A cleaner wrasse interacts with its reflection in a mirror. A study, which suggests that fish might possess far higher cognitive powers than previously thought, has ignited an intense debate over how we assess the intelligence of animals

Do fish really possess higher cognitive powers?

Mirror self-recognition test

The standard method for testing whether an animal is self-aware is placing a mark on its body that cannot be viewed directly and then letting it have a look in a mirror. If the animal responds to its reflection and attempts to remove the mark it is considered evidence that the animal is self-aware.



Tim Saville
Tim Saville was a member of the Robin Hood Dive Club, England

A little good comes from Brit wreck diver's death

61-year-old Tim Saville was diving the wreck of the Titanic’s sister ship. At the time of writing this article, it is not known why Saville died.

There is a policy in place on Britannic that divers are not allowed to penetrate the wreck unless they are diving a rebreather because this will help preserve the ship. (Gas is expelled when diving open circuit scuba). It is understood that Saville was diving an X-CCR rebreather.

KELDAN Remote control

When I spotted this strange-looking, boxy gadget in Keldan’s booth at the Boot show in Düsseldorf, I had to inquire what it was. It turned out to be the prototype of an upcoming videolight controller with which the imagemaker can remotely adjust the output of two videolights directly from the camera housing.

Lake Trout (Salvelinus namaycush)
Lake Trout (Salvelinus namaycush)

Warmer waters in Ontario lakes messes with lake trout's diet

According to a new study, climate change is giving rise to changes in the diets of fishes in Ontario lakes, thereby altering the food webs there.

Researchers from the University of Guelph have discovered that the fish in Ontario lakes have been forced to forage in deeper waters due to the warmer average temperatures in the past decade. As a result, they consume prey species that are different from their normal diet, and this has led to a change in the flow of energy and nutrients in the lake.

The maze that the crabs in the study had to get through.

Study reveals crabs' spatial learning skills

Many studies about spatial learning in animals have focused on land animals, and less so in marine animals, possibly due to the difficulty in following them around.

This new study, led by Swansea University marine biologist Ed Pope and master’s student Ross Davies, gives a glimpse into the European shore crab’s level of spatial learning ability.

First, the team constructed a special maze that measured 75cm by 50cm. A single crushed mussel was placed at the end of it.

World Shootout Announces 2018 Winners at BOOT Dusseldorf

On Saturday, January 26th, the festive World ShootOut 2018 award winning ceremony took place at the boot Dusseldorf. Competition participants from all over the world arrived especially for the event, including photographers from South East Asia and USA. Prizes worth more than $70,000 were awarded to the winners of the 9 categories, as well as a fair share of cash prizes.

Diver Error Highlights the Lethality within the System

Debriefing allows lessons to be learned—successes and failures. Photo by Gareth Lock.

Diving is not without risk—there is always a chance of death. There is always a latent or potential lethality within the “system”—where system is defined as the equipment, people and the physical, social or cultural environment. We cannot make diving 100 percent safe despite what anyone tells you. We can make things safer, but we cannot make diving safe.