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

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 ...

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

For mating male octopuses, one limb is more important than all others. That is the third right arm or hectocotylus, which is ...

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

Octopus arms are one of the most flexible structures known in all of the biological world. Their agility is so extraordinary that robotics researchers want to learn the secrets behind their movements, ...

A six-year-old boy was hurt when an octopus grabbed on to his arm and wouldn't let go after the boy reached into a touch tank at the San Antonio Aquarium, his mother said. Britney Taryn, the boy's mom ...