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Coconut Octopus (Amphioctopus marginatus)
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Description: Amphioctopus marginatus, also known as the coconut octopus & veined octopus, is a medium-sized cephalopod belonging to the genus Amphioctopus. It is found in tropical waters of the western Pacific Ocean. It commonly preys upon shrimp, crabs & clams & displays unusual behaviour, including bipedal walking & gathering & using coconut shells & seashells for shelter. The main body of the octopus is typically around 8 cm (3 in) in size & with arms, approximately 15 cm (6 in) long. The octopus displays a typical color pattern with dark ramified lines similar to veins, usually with a yellow siphon. The arms are usually dark in color, with contrasting white s*ckers. In many color displays, a lighter trapezoidal area can be seen immediately below the eye. The coconut octopus is found on sandy bottoms in bays or lagoons. It frequently buries itself in the sand with only its eyes uncovered. It is one of only two octopus species known to display bipedal behavior, the other species being Abdopus aculeatus. The bipedal motion appears to mimic a floating coconut.It uses tools for defense & the use of available debris to create a defensive fortress. It collects coconut shells, discarded by humans, from the sea floor & carries them up to 20 m (66 ft) & arranges the shells to form a spherical hiding place akin to a clamshell. Although octopuses often use foreign objects as shelter, the sophisticated behavior of A. marginatus when they select materials, carry & reassemble them, is far more complex.
Uploaded By: femcat38
Date: 12/14/2011
Views: 377
File Size: 83 KB
