On the occasion of the first genome sequence of a cephalopod species I've had a closer look at the biology of the 8-legged animals and learned many amazing things about their evolution, intelligence, and how they make sure their arms don't bump into each other.
All this is in my latest feature:
Intelligent life without bones
Current Biology Volume 25, Issue 18, pR775–R777, 21 September 2015
The photo shows the octopus Wunderpus photogenicus, found in shallow waters from Indonesia to the Philippines. (Photo: Roy L. Caldwell.)