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Are Octopuses Smart?

In 2014, one of Roy Caldwell’s octopuses went missing. Caldwell, a professor of integrative biology at the University of California, Berkeley, had kept the reef octopuses (Abdopus aculeatus) he and his team collected on Lizard Island in Australia in separate, sealed tanks. Puzzled, he peered into the female octopus’s tank and found spermatophores, the capsules that …

Electric Avenue: Energy-Harvesting Tiles Line London ‘Smart Street’

Could city sidewalks one day generate the energy that powers streetlights? An interactive installation in London is taking the first steps toward that futuristic idea, by lining a little-used lane with interactive tiles, to transform it into an energy-harvesting “smart street.” The project launched June 29 on Bird Street, a quiet and relatively traffic-free road …