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The Cephalopod Page: What Behavior Can We Expect of Octopuses?
The navigation and spatial skills, tool use, play, and personalities of octopuses are covered in the studies discussed in this article.
Other
Dalhousie University: Octopus Dofleini
Provides an overview of the life of a giant octopus. Has a great picture.
Other
Octopus Vulgaris
Provides an overview of the life of the octopus vulgaris. Also has a great picture of the octopus vulgaris.
Other
Octopus Rubescens
A very brief description of the red octopus. A great picture of the red octopus is posted on this site as well.