Wild spider monkeys now have a new tool under their proverbial belt: a body scratcher that may release medicinal compounds …

Wild spider monkeys now have a new tool under their proverbial belt: a body scratcher that may release medicinal compounds, according to a study published in the latest issue of the journal Primates.

The study is the first to report this spider monkey scratcher. Lead author Stacy Lindshield told Discovery News that two other instances of the use of objects as tools by the social monkeys have been documented.

“Spider monkeys have been observed rubbing crushed and chewed leaves on their bodies,” said Lindshield, a researcher in Iowa State University’s Ecology and Evolutionary Biology Graduate Program.

She explained that the smelly practice may “play a role in olfactory communication.”

“Second, spider monkeys are known to break off branches and drop them on or near human observers,” she added, “so it’s not a good idea to be directly beneath these guys!”

She and co-author Michelle Rodrigues collected observational data on wild spider monkeys at El Zota Biological Field Station in northeastern Costa Rica. They documented three instances where the monkeys used the scratcher tool.

Source: http://dsc.discovery.com/news/2009/07/31/spider-monkey-scratcher.html

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