Male octopuses guided through mating by female hormones
via arstechnica.com
Short excerpt below. Read at the original source.
Octopuses are one of the most alien creatures on Earth. The lack of bones makes them amazing shapeshifters, most of them can change color like chameleons, and they pump blue copper-based blood through their bodies using three distinct hearts. They rely on a decentralized nervous system, where two-thirds of their neurons reside in their arms, […]