A rare Larger Pacific Striped Octopus has arrived at Steinhart Aquarium in the California Academy of Sciences. This octopus mates by "kissing" or touching beaks. To attract a mate, the octopus quickly displays an impressive color change, from dark reddish-black to white with black stripes.
Nina Sen is a frequent contributor to Live Science’s Life’s Little Mysteries series: an exploration and explanation of our world’s phenomena, both natural and man-made. She also writes astronomy photo stories for Live Science's sister site Space.com.