Latest

Decisions reached through consensus are often more accurate, because they efficiently utilize the diverse information possessed by group members
Decisions reached through consensus are often more accurate, because they efficiently utilize the diverse information possessed by group members

Fish Choose Their Leaders By Consensus

Small groups of sticklebacks (Gasterosteus aculeatus) reach consensus when choosing which of two replica fish to follow. As group size increases, the fish make more accurate decisions.

"It turned out that stickleback fish preferred to follow larger over smaller leaders," said Ashley Ward of Sydney University

"Not only that, but they also preferred fat over thin, healthy over ill, and so on. The part that really caught our eye was that these preferences grew as the group size increased, through some kind of positive social feedback mechanism."

Elphinstone: Grand Canyon of Southern Egypt

It was 6:30 in the morning, and my dive buddy and I were hauling our gear back from the big zodiac speedboat after a thrilling midnight dive on the famous Elphinstone reef in the Red Sea near Marsa Alam, Egypt. While rinsing my gear, Ahmed—the local dive guide—started talking to me because I was diving a back plate, wing and long hose just like him, and he probably felt some kind of connection.

Giant Mantas of Equador

There is a recently developed term making its way into common use amongst the wider dive community, and that term is, citizen scientist. The science community is waking up to the fact that the common man and woman are valuable resources for acquiring many missing pieces in the jigsaw puzzle that is marine research, particularly for migratory species

Timor-Leste: Land of the Sleeping Crocodile

The juvenile salt-water crocodile was near to death when the small boy found it stranded in a swamp far from the sea. Although greatly afraid, the boy decided to try and save the crocodile and eventually managed to get it back to the sea where it quickly recovered.

The two became best friends and went on to travel the world together, with the boy riding on the back of the crocodile as it swam across the seas.

Possible wreck of WW2 minisub located off Northern Ireland

Alex Attwood has banned diving at the site of the discovery near the Foyle Bridge. He said it was important that the wreck was not disturbed until it was positively identified.  "The wreck is in quite low water, it is quite accessible," Mr Attwood told the BBC.

BBC Northern Ireland Environment Correspondent Mike McKimm said that was unlikely to be a full-sized submarine.

"A German U-boat, for example, would sit almost 10m high and would have been visible, even at high tide in the Foyle, which has an average depth of just over 5m."