In Twenty Thousand Leagues Under the Sea, Captain Nemo and his crew roam the oceans aboard a submarine called Nautilus and are attacked at one point by an army of giant tentacled creatures.
Almost 150 years after Jules Verne’s classic adventure novel, marine biologists piloting a remotely operated submersible vessel, from a ship called Nautilus, have found the largest gathering of octopuses recorded.
The Californian cephalopods, which have challenged established thinking about octopus behaviour, were in no mood for a fight, however. Nearly all of the more than 1,000 of them were turned inside out to protect their growing young.
It used to be thought that octopuses were strictly solitary and highly territorial. Then last year researchers in Costa Rica found a deep-sea cluster of…