Eric Walker added Pull or Push? Octopuses Solve a Puzzle Problem to Octopus vulgaris
Eric Walker added Pull or Push? Octopuses Solve a Puzzle Problem to Octopus vulgaris, and added Octopus vulgaris to Octopus
Eric Walker added Day octopus and Octopus vulgaris and a number of links to Octopus, and added Octopus to Octopodidae