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

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

Octopuses are an extremely diverse group of sea life. With roughly 300 species in total, there are many octopus species that ...

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

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

A new study by Harvard biologists reveals how octopuses feel their way to potential mates with a "taste by touch" sensory ...

In a first-of-its-kind occurrence, about 15 red octopuses in the La Jolla aquarium’s care have transitioned from a ...

It's not all that unusual to see octopus on a restaurant menu. But an octopus as a family pet? Cameron Clifford of Edmond, Okla. says his 9-year-old son Cal is a huge fan of the eight-legged creatures ...

Ghost the octopus is spending her final days at the Aquarium of the Pacific caring for her eggs - even though they will never ...