Posts Tagged ‘tool use’

Dec
16
2009

Tropical tactics

Credit: Roger Steene

Credit: Roger Steene

The veined octopus is a truly amazing underwater character. Researchers in Melbourne have discovered that they get up to some surprising antics – using coconut shells.

These octopi collect coconut shells discarded by their human neighbours, gather them under their body and then carry them and walk, rather awkwardly, for up to 20m at a time. The scientists dubbed this as ‘stilt-walking’ due to the unusual way the octopus has to use its legs whilst carrying the shells.

The octopus goes to this considerable effort so he or she has portable ‘armour’. If suddenly under threat the octopus could create instant camouflage and protection by climbing in between two coconut halves.

This is really significant, as use of tools by animals is said to be a sign of higher mental functioning, as is planning for the future. Some people used to believe that only humans had such advanced abilities, but we increasingly find that other animals have so many unsuspected abilities – including a mind of their own. (see Rooks, Pigs).

Here is another shining example of amazing animals and a valuable reminder that animals can have many hidden abilities that we are yet to notice and appreciate.

Watch original video footage here.

ITN coverage:

Source: Finn, J. K., Treganza, T. and Norman, M. D. (2009) Defensive tool use in a coconut – carrying octopus, Current Biology, 19 (23): R1069-R1070.

Julian K. Finn1, 2, , Tom Tregenza3, and Mark D. Norman1

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Posted in Intelligence, tool use | No Comments »

Nov
16
2009

Helpful Chimps

Chimps in Japan have been seen helping their companions out, purely on the basis of need. They would hand tools over to chimps in a nearby pen; and most notably this was most likely to happen if the chimp really needed the tool and requested it, rather than if they just wanted it to play with. This shows that chimps care about the welfare of their fellows and will assist them even if there is nothing to be gained themselves.

This helping is not just reserved for other chimps too – in a previous study by Warneken, chimps were also witnessed helping humans in a similar task and handing a stick to them on request. Videos of both of these experiments can be found below.

Chimp helps human- scroll down the page, and play the first video in the list.

Sources:
Yamamoto, S., Humle, T.,Tanaka, M. (2009)
Chimpanzees Help Each Other upon Request
PLoS ONE, 4(10): e7416

Warneken, F., Hare, B., Melis, A. P., Hanus, D., Tomasello, M.
Spontaneous Altruism by Chimpanzees and Young Children
PLoS Biol 5(7): e184

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Posted in Chimps, Communicating, Intelligence | No Comments »

Jul
03
2009

Pigs outwit computers

Some pig breeding farms use computerised feeders for the pregnant sows. Each sow is fitted with an electronic collar which triggers the release of each sow’s meal individually. Perhaps unsurprisingly, some pigs reject the collars and will get them off. Other clever pigs have learnt that picking up the collar and taking it through the computerised feeding area means that they get another meal.

The farmer of course needs to replace the collars of the sows who discarded theirs, otherwise those sows will not get any food.

A TV series called ‘Clever Critters’ filmed some of these sows and you can see them here:

The clip says the sows are only fed one meal per day. The farmer does provide straw, a really important basic enrichment for pigs. But these clever animals may be hungry and they also will look for interesting activities to fill their days of pregnancy. It is admirable how they use their wits to beat the system!

Pigs are intelligent and curious and need an interesting environment

Pigs are intelligent and curious and need an interesting environment. Image (c) Compassion in World Farming/Martin Usborne

“A cat looks down on man, a dog looks up to man,
but a pig will look man right in the eye and see his equal.” 
Winston Churchill

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Posted in Farm Animals, Intelligence, Pigs, tool use | 1 Comment »

Jun
27
2009

Rooks are no rookies when it comes to using tools

Apes, crows and dolphins have been seen to make and use tools. Now, captive rooks have joined the band of animals who are “tool users.”

Rooks have not been seen to use tools in the wild. But not only can they use tools, they can use two in succession and they can make new ones. This BBC article reports research in which the rooks worked out how to get a food treat from a apparatus consisting of a tube and a small trap door. They needed to choose a suitable stone and drop it into a tube to release the trap door and get their treat. They chose the heaviest stone as the most likely to be weighty enough to make the trap door open. They also  had to choose from different-shaped stones, not all of which would fit into the tube. They chose the best-shaped stone! Here’s the film of the clever rooks with rocks.

Rooks are even more clever than we thought. Photo: foxypar4

Rooks are even more clever than we thought. Photo: foxypar4

The birds also quickly learnt how to bend a straight piece of wire to make a hook, so they could pull up a small container with food in it from the bottom of a test tube. It is amazing to see! Watch the film clip.

Betty, a captive New Caledonian crow, was the only captive bird who had previously been seen to do this. Crows in the wild do use tools, such as twigs and leaves. They use their beaks to make these tools into a satisfactory shape and then pick up ants and other insects. They also use grass stems. The rooks showed they can use and make tools too; three out of four made a hook in their first trial. One of the researchers pointed out: “The study shows the creativity and insight that rooks have when they solve problems.”

Rooks also understand that they can work in pairs to get a good food source. In this experiment, also reported by the BBC, researchers put two hooks on a small tray which had treats for the rooks, and then put a length of string through the hooks. The rooks were in an enclosure and the tray was just out of their reach. To pull the tray to them and get the food, each rook needed to pull on the strings at either side of the tray. The rooks all worked this out – some immediately and others took a bit longer. The rooks’ understanding of this “need for team work” is said to be as good as that of chimpanzees. Here’s the film clip of the dexterous rooks.

Rooks and crows are both in the corvid family, along with jackdaws, jays, magpies and ravens.  These birds have long had a reputation for being clever and researcher Nathan Bird at the University of Cambridge said: “I would rate corvids as being as intelligent as primates in many ways.”

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Posted in Birds, Intelligence, Rooks, tool use | 1 Comment »

Jun
16
2009

An evening with Dr Jane Goodall DBE

Date, time and venue:
Thursday 25 June 2009
7.00pm – 9.30pm
Prince Albert Suite, ZSL London Zoo, Outer Circle, Regent’s Park, London, NW1 4RY

Jane Goodall and friend. Image (c) Michael Neugebauer

Jane Goodall and friend. Image (c) Michael Neugebauer

Dr Jane Goodall’s pioneering studies of wild chimpanzees revolutionised our knowledge about the sentience of these amazing animals.

This event is an exciting chance to meet Dr Goodall, hear more about her fascinating life and work, and take part in an informative question and answer session. Tickets are £20 for members of the Jane Goodall Institute and £40 for non members.

For more information and to book tickets, please contact Claire Quarendon at The Jane Goodall Institute, UK . 
Tel: 023 8033 5660 or email claire@janegoodall.org.uk

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Posted in Chimps, Events | 1 Comment »

May
11
2009

Clever Karta: Orang-utan with a mission

Karta, a 27-year old orang-utan, escaped from her zoo enclosure by twisting the wires in the electric fence with a stick, making them short-circuit.

According to Sky News, clever Karta then “piled up debris to help her climb over a concrete and glass wall.”

Karta took herself back to the enclosure after an hour. The zoo curator says that Karta is ”ingenious”, and that she watches the day to day activities of zoo staff with interest – probably to see what she can learn!

Many animals, including great apes, pigs and elephants, have developed intelligence to obtain a living from their complex environments. Orang-utans in nature live in the Indonesian rainforest, one of the most biodiverse environments in the world.

Lives of Animals.org has some concerns with the comment in this clip that Karta’s enclosure will be “pruned.” While increased security may be wanted, restricting Karta’s environment is unlikely to be the best outcome for her. While the zoo has clearly attempted to provide an interesting enclosure for Karta, perhaps her escape attempt tells us that all is not well with her world. We have to ask to what extent is it possible to provide for the needs of complex, wide-ranging animals in captivity?

Never underestimate an orang-utan
 There’s a anecdote often told about great apes and if you know its origins, please let us know.

Don't underestimate us

Don't underestimate us

If you give a screwdriver to a gorilla, he will look at it briefly and then discard it.
If you give the screwdriver to a chimp, he’ll think of a hundred uses for it.
If you give the screwdriver to an orang-utan, he’ll pretend to ignore it until you’ve gone, when he will let himself of the cage with it…

 


More information
You can read more about amazing orang-utans here.

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Posted in Intelligence, Orang-utans, Zoo | 2 Comments »

Mar
13
2009

Santino rocks!

Jane Goodall’s observations of chimps revolutionised our knowledge of them as sentient beings. Chimps have strong family bonds and are skilled at using tools.

Santino, a chimp who is in a zoo in Sweden, has attracted huge media interest by his planning  for the future. Chimps in zoos are known for throwing stones at visitors. But Santino has been searching his enclosure for stones and loose concrete. He has been both storing these up, and making discs out of concrete, to later throw at visitors to the zoo during what are called “dominance displays” (perhaps when he is stressed or fed up at being stared at).

Santino - a very clever chimp

Santino - a very clever chimp

The signs are, then, that chimps can plan for the future. Previously scientists had thought only humans were capable of planning ahead in this way, but based on these kinds of observations, it is likely that other animals can too. Dr Osvath, Santino’s researcher, is reported as saying: “I bet there must be a lot of these kinds of behaviours out there, and I wouldn’t be surprised if we find them in dolphins or other species.”

What’s more, planning is not the end of Santino’s abilities, as the article tells us:

“Most interestingly, Santino seems to have learned how to spot weak parts of the concrete “boulders” in the centre of the enclosure. When water seeps into cracks in the concrete and freezes, portions become detached that make a hollow sound when tapped. Santino was observed gently knocking on the “boulders”, hitting harder to detach bits that were loosened and adding those to his stashes of ammunition.”

You can see Santino on the film clip below. Lives of Animals.org has some concerns with this clip. Firstly, it is entitled “Naughty chimp’s human ways”, when Santino is not “naughty”. The report says that if he carries on his “naughty ways”, staff will keep him indoors. Santino already has a far from natural life and it’s important to seek a better answer such as enriching his environment, rather than restricting it further.

Zoo staff are said to be calling Santino "The Thinker."

Zoo staff are said to be calling Santino "The Thinker."

Animals are capable of experiencing a rich quality of life and Santino’s story shows us how clever they can be. In our treatment of animals, we need to pay attention to their quality of life.

Source of story: BBC News

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Posted in Chimps, Emotions, Zoo | No Comments »