Wednesday, 23 August 2017

Are Octopuses Smart?

By Sarah B. Puschmann, Staff Writer | August 18, 2017 11:44am ET

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 contain octopus sperm, floating in the water. He looked closer and found the male there, too, buried in the gravel.

The only way the male octopus could have made it into the female's tank, Caldwell said, is for the male to have wriggled through the pipe that fed water into both octopuses' tanks, an act some might deem proof of a calculated nighttime tryst.  

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