- Sep 4, 2006
- Reaction score
- Gainesville, GA
Bipedal Octopuses Dr. Christine Huffard
HIGHLIGHTS1. Two species of octopuses walk on two of their eight arms using a rolling gait. 2. This is the first example of bipedal locomotion using a hydrostatic skeleton rather than rigid support.3. We hypothesize that this locomotion proceeds with minimal neural feedback from the brain.4. This behavior allows octopuses to move quickly without giving up their primary defense (camouflage).
We reviewed videotape of octopuses to describe the kinematics of their bipedal locomotion. They walk along the bottom on their ventral (backmost) two arms using a flexible, rolling gait. Amphioctopus marginatus draws six arms up to the rounded body and walks backward. Abdopus aculeatus coils and raises the other arms above the head as it walks, even over rugged terrain.