Inky’s Amazing Escape--How a Very Smart Octopus Found His Way Home by Sy Montgomery is a fascinating look at this remarkable animal. Inky is born the size of a grain of rice and by the time he ends up in an aquarium he is the size of a baseball, and with care and feeding ultimately the size of a soccer ball with eight long arms. He amuses himself playing with Legos and Mr. Potato Head but his favorite thing to do is explore. One night he finds a drain hole--no spoilers! This is a fabulous read with a great appendix full of octopus facts.