Octopuses are the closest things to real-life aliens we’ve ever encountered. The more we learn about them, the stranger they reveal themselves to be. For instance, a new study published in the journal ...

Add Yahoo as a preferred source to see more of our stories on Google. A California two-spot octopus (Octopus bimaculoides). David Liittschwager, National Geographic Image Collection The California two ...

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When octopuses mate, the male keeps the female quite literally at arm’s length. For the act, the male has a special arm called a hectocotylus, which it uses to deposit a sack of sperm inside the ...

Octopus sex seems like a very dignified affair. A male octopus hands his sperm to a female using one of his eight arms to place a spermatophore—a seed-filled packet—into the female’s mantle cavity, ...

Add Yahoo as a preferred source to see more of our stories on Google. Scientists have now learned a lot more about the sex life of the California two-spot octopus. Octopus sex hinges on a peculiar ...

A team of neurologists, environmentalists and bioengineers at the University of Queensland, in Australia, has found that male blue-lined octopuses paralyze females prior to mating to avoid being eaten ...

Octopuses are freaky and mysterious, and they're notoriously difficult to study. But research on one particularly freaky species shows us just how much we have left to learn about cephalopods: The ...

The California two-spot octopus is a solitary creature. How exactly they manage to find suitable mates has been one of the ocean’s best-kept secrets. Now scientists have discovered that male octopuses ...