Researchers contend that neighboring communities of wild chimpanzees develop distinctive styles of mutual grooming to identify fellow group members and foster social solidarity. The grooming hand-clasp of the Mahale mountains.
Chimps employ culture to branch out.
Propagation of handclasp grooming among captive chimpanzees. From Science News , Vol. All rights reserved. Cyber Space Day Subscribe to Science News . Copyright Clearance Center Browse a Science News photo collection.