From the BBC:
22 July 2011 Last updated at 01:00
Mandrill monkey makes ‘pedicuring’ tool
By Victoria Gill Science reporter, BBC Nature
Scientists from Durham University, UK, filmed the mandrill stripping a twig and using the resulting tool to clean under its toenails.
Mandrills are the fifth species of Old World monkey seen deliberately modifying tools.
Non-human apes, including chimpanzees and orangutans, can adapt basic tools for specific jobs.
One well-known example of this behaviour is termite fishing in chimpanzees, where the animals strip down grasses to make fishing rods that they then poke into termite mounds to snag the nutritious insects.
“It is an ability that, up until a few years ago, was thought to be unique to humans,” said Dr Riccardo Pansini, who led the research.
The new findings, he said, indicate that monkeys’ intelligence may too have been underestimated.
“The gap between monkeys and great apes is not as large as we thought it was in terms of tool use and modification,” he told BBC Nature.
This video from England is called Mandrill gives himself a pedicure with a self-made tool.
See also here.
Apes in Africa: The cultured chimpanzees: here.
Orangutans Have Culture. A study shows that different populations of the Southeast Asian ape display and transmit specific behaviors through generations in a way similar to human cultures: here.
Sex differences in the stone tool-use behavior of a wild population of burmese long-tailed macaques (Macaca fascicularis aurea): here.
Dolphins use sponges as tools: Some bottle-nosed dolphins hold sponges in their beaks as protection: here.