Navigation Links
Tool use in an invertebrate: The coconut-carrying octopus
Date:12/14/2009

Scientists once thought of tool use as a defining feature of humans. That's until examples of tool use came in from other primates, along with birds and an array of other mammals. Now, a report in the December 14th issue of Current Biology, a Cell Press publication, adds an octopus to the growing list of tool users.

The veined octopus under study manages a behavioral trick that the researchers call stilt walking. In it, the soft-bodied octopus spreads itself over stacked, upright coconut shell "bowls," makes its eight arms rigid, and raises the whole assembly to amble on eight "stilts" across the seafloor. The only benefit to the octopus's ungainly maneuver is to use the shells later as a shelter or lair, and that's what makes it wholly different from a hermit crab using the discarded shell of a snail.

"There is a fundamental difference between picking up a nearby object and putting it over your head as protection versus collecting, arranging, transporting (awkwardly), and assembling portable armor as required," said Mark Norman of the Museum Victoria in Australia.

Julian Finn, also of the Museum Victoria, said the initial discovery was completely serendipitous.

"While I have observed and videoed octopuses hiding in shells many times, I never expected to find an octopus that stacks multiple coconut shells and jogs across the seafloor carrying them," he said.

In recalling the first time that he saw this behavior, Finn added, "I could tell that the octopus, busy manipulating coconut shells, was up to something, but I never expected it would pick up the stacked shells and run away. It was an extremely comical sightI have never laughed so hard underwater."

After 500 diver hours spent "under the sea," the researchers observed the behavior of 20 veined octopuses. On four occasions, individuals traveled over considerable distancesup to 20 meterswhile carrying stacked coconut shell halves beneath their body.
'/>"/>

Contact: Cathleen Genova
cgenova@cell.com
617-397-2802
Cell Press
Source:Eurekalert

Page: 1 2

Related biology news :

1. Tentacles of venom: New study reveals all octopuses are venomous
2. Cretaceous octopus with ink and suckers -- the worlds least likely fossils?
3. Queens University Belfast researchers trace octopuses family tree
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:12/17/2014)... 15, 2014  HITLAB SM announced today ... audit to confirm its adherence to current U.S. ... enables HITLAB to conduct regulated smart device and ... for patient safety and research quality. ... quality, and delivery with innovative technology," said ...
(Date:12/17/2014)...  Automation is fundamentally transforming the travel experience ... international borders. Over the past decade, ePassports, biometric ... travelers to self process through border control via ... an increasing number of airports, seaports, and land ... to Maxine Most , Principal at Acuity ...
(Date:12/11/2014)... Research and Markets , ... http://www.researchandmarkets.com/research/9ql3kr/biometrics_market ) has announced the addition of the ... to their offering. One major ... of multimodal biometric systems. Multimodal biometric systems utilize ... verification and identification purposes. This helps to reduce ...
Breaking Biology News(10 mins):HITLAB Completes GCP Audit for FDA Smart Device & App Compliance 2Automated Border Control (ABC) Transforms the Global Travel Experience With More Than 2500 ABC eGates and APC Kiosks Deployed In Airports, Seaports, and Land Borders Worldwide 2Biometrics Market in India 2015-2019: Key Vendors are 3M Cogent, NEC, Safran and Suprema 2
... from the north-central U.S. and beyond will convene in Kalamazoo, ... and discuss new science, expand on existing science, and explore ... a special emphasis on the Great Lakes. Events include a ... by William F. Ruddiman titled, "When Did We Transform Earth,s ...
... York, NY (April 18, 2013) An excess of ... psychosis in people who are at risk for schizophrenia, ... Center (CUMC) published in the current issue of ... diagnostic tool for identifying those at risk for schizophrenia ...
... IOF Medal of Achievement has been presented today to ... Department of Internal Medicine, Hospital del Mar, Director of ... Institute of Medical Research and Professor of Medicine at ... Foundation (IOF) awards the IOF Medal of Achievement every ...
Cached Biology News:Kalamazoo center of geologic focus this May 2High levels of glutamate in brain may kick-start schizophrenia 2IOF Medal of Achievement awarded to Professor Adolfo Diez-Perez 2
(Date:12/24/2014)... The report expects global cell isolation and expansion ... provides a carefully analyzed data about the vital drivers, ... , Full Copy of Report @ http://bit.ly/1yUxy0T ... cell expansion will keep witnessing growth at an impressive ... be driven by rapid technological advancements, government funding and ...
(Date:12/24/2014)... 23, 2014 China Biologic Products, Inc. ... leading fully integrated plasma-based biopharmaceutical company in ... majority-owned subsidiary, Shandong Taibang Biological Products Co. Ltd., ... the China Food and Drug Administration (the "CFDA") ... previously disclosed in the Company,s public filings, the ...
(Date:12/24/2014)... -- PharmaBoardroom,s new report, , Healthcare ... for free download , digs deep into this vibrant ... the sector today. One area where ... developing a homegrown pharmaceutical manufacturing base, even if the government,s ... way off. A cursory comparison with neighboring Morocco ...
(Date:12/24/2014)... SARASOTA, Fla. , Dec. 23, 2014  Rock ... today that it has filed a Clinical Trial Application ... Medicines Healthcare products Regulatory Agency (MHRA) seeking regulatory approval ... its lead molecule, Anatabine Citrate. Contingent on ... to conduct a Phase I trial to assess the ...
Breaking Biology Technology:The Cell Expansion Market is Expected to Reach $14.8 billion by 2019 - New Research Report by MarketsandMarkets 2The Cell Expansion Market is Expected to Reach $14.8 billion by 2019 - New Research Report by MarketsandMarkets 3China Biologic Receives GMP Certification for New Coagulation Factor Facility 2China Biologic Receives GMP Certification for New Coagulation Factor Facility 3PharmaBoardroom Releases New Algeria Pharmaceuticals Report 2PharmaBoardroom Releases New Algeria Pharmaceuticals Report 3Rock Creek Pharmaceuticals Files Clinical Trial Application in the UK for Clinical Trials of Anatabine Citrate Formulations 2Rock Creek Pharmaceuticals Files Clinical Trial Application in the UK for Clinical Trials of Anatabine Citrate Formulations 3
... CryoLife, Inc. (NYSE: CRY ),a biomaterials, medical device ... to participate in the 19th Annual Piper Jaffray,Health Care ... on Tuesday,November 27, 2007. Steven G. Anderson, president ... beginning at approximately 1:30 p.m. EST. CryoLife,s live ...
... pm ET on November 27, 2007, CAMBRIDGE, Mass., ... today announced its participation,in the Lazard Capital Markets Fourth ... at the New York Palace Hotel in New York,City. ... be presenting at 2:00 pm ET on Tuesday, November ...
... Scientists have announced,that they successfully reprogrammed adult ... of patient-specific medical treatments and,research without the need ... the Discovery Institute,s Senior Fellow in Bioethics,and author ... hailed the,breakthrough as demonstrating that ethical science is ...
Cached Biology Technology:CryoLife to Present at 19th Annual Piper Jaffray Health Care Conference in New York 2Targanta to Present at Lazard Capital Markets Fourth Annual Healthcare Conference 2
... new product number, created to easily match ... yet, please order under the old Sigma-Aldrich ... assistance. ID clarifier: tissue-culture treated ... cm 2 D H 245 ...
... Novagens PhageMaker System is optimized for maximum ... ligated with any bacteriophage l vector. Using a ... > 10^7 pfu/g arms (> 4 x 10^8 ... This one-tube system is extremely easy to use; ...
Mouse monoclonal [7B9] to beta II Tubulin ( Abpromise for all tested applications). Antigen: Synthetic peptide, CEEEEGEDEA found at the c-terminus of beta II tubulin. Entrez GeneID: 10383 ...
Polymerase (RNA) II (DNA directed) polypeptide L...
Biology Products: