Scientists found that the male’s hectocotylus, the specialized arm for mating, is lined with receptors that can sense ...

The hectocotylus is both a reproductive and sensory organ, Harvard scientists and others have found. Octopuses are some of ...

When the scientists paired two male octopuses in the same setup, the males interacted by touching arms, but they never ...

In lieu of a penis, the male has a special mating arm called a hectocotylus. In a new study published today in Science, ...

The specialized arm that male octopuses use for mating is also a sensory organ that can detect the ovarian hormone progesterone, according to new experiments conducted by Pablo Villar and colleagues.

It’s an octopus-eat-octopus world. Scientists have discovered that mating, male blue-lined octopuses will inject a powerful, ...