How do octopuses mate in the dark? A new study shows how the hectocotylus arm uses progesterone receptors to "taste" for a mate.

The hectocotylus is both a reproductive organ and a sensory organ, a rare combination in animals, new research suggests ...

Scientists have learned how male octopuses’ specialized sperm-depositing arm knows where to go ...

For an octopus, exploring the ocean floor with eight highly sensitive arms is a constant game of roulette. These limbs are ...

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 ...

Octopuses are some of the most mysterious animals living in the sea. In research out today, however, scientists have pulled back the curtain on the male octopus’ penis-like arm, formally known as the ...

Sensory organ in male cephalopod able to detect female hormone progesterone, even if male cannot see partner ...

Add Yahoo as a preferred source to see more of our stories on Google. A mating pair of wild Octopus americanus, one displaying the arm action “raise.” A new study of octopuses in the wild found that ...

In the dark depths of the sea, where vision is difficult, meeting a mate becomes a problem. Octopuses, which are highly ...

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 ...