Why do octopuses have a ‘mating arm’?
Researchers have found that male octopuses have a specialised arm, known as the hectocotylus, as a sophisticated sensory organ to identify females. | Photo Credit: H. Zell (CC BY-SA) A: Octopuses often live solitary lives and rarely encounter mates, which means they need to be very good at recognising other octopuses if they are to…
