Coconut octopus

Amphioctopus marginatus

''Amphioctopus marginatus'', also known as the coconut octopus and 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, and clams, and displays unusual behavior including bipedal walking and tool use .
Veined/Coconut Octopus They were called Coconut Octopus as in the early days of their discovery, they were found to using coconut shells as protection and as their 'home'.  Subsequent to that, they have been documented to use other hard objects like in the photo, broken cups, glass, bottles and mostly shells of seashells for protection against their predators. Amphioctopus marginatus,Geotagged,Philippines,Spring,Underwater,anilao,batangas,scubadiving

Appearance

The main body of the octopus is typically 8 centimeters long and including the arms, approximately 15 centimeters 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 suckers. In many color displays, a lighter trapezoidal area can be seen immediately below the eye.
Octopus night hunt Octopus catch shrimp and take it to it's home. Amphioctopus marginatus,Coconut octopus,Geotagged,Philippines,Winter,hunt,night,shrimp

Behavior

The coconut octopus is found on sandy bottoms in bays or lagoons. It frequently buries itself in the sand with only its eyes uncovered.

In March 2005, researchers at the University of California, Berkeley, published an article in ''Science'' in which ''A. marginatus'' was reported to show bipedal locomotion. It is one of only two octopus species known to display such behavior, the other species being ''Abdopus aculeatus''. According to the article, this behavior was discovered in an area off Sulawesi, Indonesia, where the sandy bottom was littered with coconut shells. The bipedal motion appears to mimic a floating coconut.

Researchers from the Melbourne Museum in Australia claimed the coconut octopus uses tools for concealment and defense by gathering available debris to create a defensive fortress. This behavior was observed in individuals in Bali and North Sulawesi in Indonesia. The researchers filmed the octopus collecting coconut half-shells discarded by humans from the sea floor. They were then carried up to 20 meters and arranged around the body of the octopus to form a spherical hiding place similar to a clam-shell.
Coconut Octopus - Amphioctopus marginatus Rojos, Lembeh. Same octopus :-) Amphioctopus marginatus,Coconut octopus,Geotagged,Indonesia,Spring

Habitat

The coconut octopus is found on sandy bottoms in bays or lagoons. It frequently buries itself in the sand with only its eyes uncovered.

In March 2005, researchers at the University of California, Berkeley, published an article in ''Science'' in which ''A. marginatus'' was reported to show bipedal locomotion. It is one of only two octopus species known to display such behavior, the other species being ''Abdopus aculeatus''. According to the article, this behavior was discovered in an area off Sulawesi, Indonesia, where the sandy bottom was littered with coconut shells. The bipedal motion appears to mimic a floating coconut.

Researchers from the Melbourne Museum in Australia claimed the coconut octopus uses tools for concealment and defense by gathering available debris to create a defensive fortress. This behavior was observed in individuals in Bali and North Sulawesi in Indonesia. The researchers filmed the octopus collecting coconut half-shells discarded by humans from the sea floor. They were then carried up to 20 meters and arranged around the body of the octopus to form a spherical hiding place similar to a clam-shell.

References:

Some text fragments are auto parsed from Wikipedia.

Taxonomy
KingdomAnimalia
DivisionMollusca
ClassCephalopoda
OrderOctopoda
FamilyOctopodidae
GenusAmphioctopus
SpeciesA. marginatus