This article was originally published at The Conversation. The publication contributed the article to Space.com's Expert Voices: Op-Ed & Insights. Culum Brown, Professor, Macquarie University Michael, ...

WASHINGTON (Reuters) - For the roughly 300 known octopus species dwelling in the world's oceans, having eight arms is a defining characteristic. But that is not the way it started. Scientists said on ...

(Reuters) - The octopus is an extraordinary creature - and not only because of its eight limbs, three hearts, blue blood, ink squirting, camouflage capacity and the tragic fact that it dies after ...

Among the smartest animals on Earth, octopuses are unique for being utterly weird in their evolutionary path to developing those smarts. Philosopher Peter Godfrey-Smith has called the octopus the ...

Scientists have demonstrated that cephalopods have an expanded number of microRNA families, which could explain how the complex octopus brain developed. Octopuses and other coleoid cephalopods are ...

An octopus in seen in its "active sleep" state during a laboratory study at the Brain Institute of the Federal University of Rio Grande do Norte in Natal, Brazil, in this undated handout photograph.

WASHINGTON (Reuters) – For the roughly 300 known octopus species dwelling in the world’s oceans, having eight arms is a defining characteristic. But that is not the way it started. Scientists said on ...

March 25 (Reuters) - The octopus is an extraordinary creature - and not only because of its eight limbs, three hearts, blue blood, ink squirting, camouflage capacity and the tragic fact that it dies ...

Sign up for our Metro US email newsletter to get news, updates, and local insights delivered straight to your inbox! (Reuters) – The octopus is an extraordinary ...