Ricoh WG-6
Ricoh’s latest top-of-the-line waterproof camera is depth-rated to 20m (65ft). It features a 20MP sensor, 28-140mm F3.5-5.5 lens and a built-in macro ring light.
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.
Diver Error Highlights the Lethality within the System
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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.