Photo courtesy of Tasikoki Wildlife Rescue

We are finding out more and more about animals who use ‘tools’ in their daily lives. Animals in a group may also learn from each other and pass this information on to each other. Scientists call this ‘cultural transmission’.

The first documented case of wild orangutans making and using tools was reported from a population of orangutans in Indonesia in 1996. They used tools which they had crafted either for extracting insects or seeds to eat.

Researchers then went on to look at how tool-use varied between orangutans living in different regions. They compared the tool-use of orangutans at six different areas. It was found that the different orangutan populations behaved differently and these differences were greatest between groups living furthest apart. Orangutans who lived in larger groups and who were socially tolerant used tools more than those who were isolated.

Photo courtesy of Tasikoki Wildlife Rescue

The evidence suggested that the differences in behavior were cultural: firstly, because the extent of the differences increased with distance, and secondly, because the extent of the orangutans’ tool-use increased according the amount of social contact in their group. Social contact increases the amount of cultural transmission.

This video clip shows orangutans at a sanctuary copying behaviours they learned through observing their human counterparts. They learned how to manoeuvre a canoe, paint, wash with soap and even use a saw!

Orangutans are fascinating animals but their future is under threat. Their rainforest habitat is being cut down at an alarming rate for logging and agriculture, including plantations of palm oil, a vegetable oil widely used in food and everyday products. You may wish to choose products which do not contain palm oil. Some companies claim to use sustainably-produced palm oil.

Sources:

van Schaik C.P., Fox,E.A., Sitompul AF. (1996). Manufacture and use of tools in wild Sumatran orangutans – implications or human evolution. Naturwissenschaften 83: 186-188.

van Schaik C.P., Knott C.D., (2001) Geographic variation in tool use on Neesia fruits in orangutans. American Journal of Physical Anthropology 114:331-342

van Schaik C.P., van Noordwijk M.A., Wich, S.A. (2006) Innovation in wild Bornean orangutans (Pongo pygmaeus wurmbii). Behaviour 143: 839-876

van Schaik C.P., Ancrenaz M., Borgen G., Galdikas B., Knott C.D., Singleton I., Suzuki A., Utami S.S., Merrill M. (2003). Orangutan cultures and the evolution of material culture. Science 299: 102-105

Armed with a snowball

For our special Christmas day post, we found a rather lovely fact about Japanese Macaque monkeys….

Young Macaques have been seen to make and throw snowballs, just like people do! Scientists could find no reason why they would do this, other than simply because it is fun!

Not only that, but back in the 1960s, these Japanese Macaques saw their human counterparts bathing in hot springs, and must have decided that this was a great idea. In the freezing temperatures they endure, a hot tub seems to be a relaxing and enjoyable social occasion.

Just another little similarity between different species – it seems many like to have fun, whether we have fur, feathers or plain old human clothes…

Wishing you a Compassionate Christmas!

Sources:

Uhlenbrook, C. (2008) Animal life the definitive visual guide to animals and their behaviour, Dorling Kindersley, London.
Primate Info Net (2009) [accessed 24 December 09)
BBC Worldwide, Monkeys Relaxing

The humpback whale was on the migratory route around the California coast when she became terribly entangled in crab trap lines. Her life was at great risk.
She was tangled up in weighted ropes up to 240 feet long around her tail, her flipper and even in her mouth. The ropes were so tight they cut into her blubber and caused visible wounds. She was completely helpless  and the weight of the traps was causing her to struggle to keep her blow hole out of the sea.

A rescue team of divers went out to her but she was in such a state  they were  unsure that they stood any chance of saving her. They were at risk themselves, as the flick of a humpback’s tail can kill a human.

But they reported that as they worked to free the unfortunate creature, she did not struggle at all and they were aware of her eyes simply following them around as they worked.

Thankfully, the rescuers were successful but must have been astonished by the whale’s heartwarming response. When she felt herself come free, she began to swim around in circles and then went up to each diver one by one and nudged them. One of the rescuers is reported as saying: “It seemed kind of affectionate, like a dog that’s happy to see you … I never felt threatened. It was an amazing, unbelievable experience.”

Her response makes us think about the common ground that humans can have with animals who might appear so very different from us. A whale-watching expert who helped co-ordinate the rescue is quoted as saying: “You hate to anthropomorphize too much  but the whale was doing little dives and the guys were rubbing shoulders with it … I don’t know for sure what it was thinking, but it’s something that I will always remember. It was just too cool.”

An interesting point about our understanding of these large sea mammals was made by Gould and Gould in their book ‘The Animal Mind’. They suggest that perhaps we have been quicker to appreciate the intelligence and sentience of primates as they are so much more similar to us in their gestures and experiences, and therefore easier for us to read. We may have been slower to understand the complexity and richness of underwater creatures simply because they appear to be so very different to us.

Humpback Whale

Sources:
San Francisco Chronice (14/12/05). Daring rescue of whale off Farallones. Accessed 17/12/09.

Gould, J. L. and Gould, C. G. (1994) The Animal Mind. Scientific American Library, New York.

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. Finn^{1, 2,} , Tom Tregenza^3, and Mark D. Norman¹

Team players. Image courtesy of Tim Vickers

Source:
Drea, C. M., Carter, A. N. (2009)
Co-operative problem solving in a social carnivore
Animal Behaviour, 78: 967-977.

According to reports, “Mila had spotted her difficulties and using her sensitive dolphin-like nose guided Yun safely to the surface.”

One of the staff is quoted as saying: “Mila noticed the problem before we did. She’s a sensitive animal who works closely with humans and I think this girl owes her her life.”

Belugas are very social and because they are so chatty, they are also known as sea canaries. When you have to swim great distances under ice in the Arctic Sea, it helps to be a good communicator so you can keep up with your pod and let each other know what’s going on. Sadly, beluga whales are yet another threatened species.

See National Geographic for an interesting film clip about beluga life.

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

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.”

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

This research took place at the University of Florida, where Professor Doug Levey, a zoologist, is reported as saying:

Mockingbirds can quickly learn to recognise individuals

“We don’t know whether it’s unique to mockingbirds, but it does suggest these birds are a heck of a lot more intelligent than people have ever given them credit for. People have known for a long time that crows and parrots for example have a lot of intelligence. But these birds are fairly small. … It’ll change the way people view the intelligence of birds like this.”
The mockingbirds live in what is considered to be a natural environment, and researchers say their scientific paper will be the first published research to show that “wild animals living in their natural settings recognize individuals of other species.”

These clever birds show us yet again that we need to respect animals’ abilities when human actions affect their lives.

Scientists looked at YouTube videos to see which animals could do this. Alex the African Grey parrot was famous for his abilities to count and to distinguish between colours and shapes – and he could also keep the beat. In fact, the video search found that 14 different species of parrot who kept time to music.

The scientists said: “Our analyses showed that these birds’ movements were more lined up with the musical beat than we’d expect by chance. … We found strong evidence that they were synchronizing with the beat, something that has not been seen before in other species.”

They suggest that the parts of the brain used for copying sounds are also involved in this ability to keep in time with the beat.