?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=Intentional+Communication+and+Social+Play%3A+How+and+Why+Animals+Negotiate+and+Agree+to+Play&rft.creator=Bekoff%2C+Marc&rft.creator=Allen%2C+Colin&rft.subject=Ethology&rft.description=In+these+papers+we+mainly+consider+how+analyses+of+social+play+in+nonhuman+animals+(hereafter+animals)+can+inform+inquiries+about+the+evolution+of+cognitive+mechanisms.++Social+play+is+a+good+behavioral+phenotype+on+which+to+concentrate+for+when+animals+play+they+typically+perform+behavior+patterns+that+are+used+in+other+contexts+(e.g.+predation%2C+aggression%2C+or+reproduction).+Thus%2C+individuals+need+to+be+able+to+tell+one+another+that+they+do+not+want+to+eat%2C+fight+with%2C+or+mate+with+the+other+individual(s)%2C+but+rather%2C+they+want+to+play+with+them.++In+most+species+(primarily+mammals)+in+which+play+has+been+observed%2C+specific+actions+have+evolved+that+are+used+to+initiate+or+to+maintain+play.+Furthermore%2C+sequences+of+play+usually+differ+from+nonplay+sequences+(within+species)+and+self-handicapping+has+also+been+observed%2C+in+which%2C+for+example%2C+dominant+individuals+allow+themselves+to+be+dominated+_only_+in+the+context+of+play.+In+our+consideration+of+how+play+is+initiated+and+maintained%2C+we+discuss+issues+including+the+evolution+of+play%2C+the+ecology+of+play%2C+the+sorts+of+information+that+are+shared+during+play%2C+what+cognitive+psychologists+who+study+humans+can+learn+from+cognitive+ethologists+who+study+other+animals%2C+and+what+play+can+tell+us+about+the+emergence+of+mind+in+animals.++These+essays+draw+on+literature+from+ethology%2C+psychology%2C+and+philosophy.+&rft.publisher=Cambridge+University+Press&rft.date=1997&rft.type=Book+Chapter&rft.type=NonPeerReviewed&rft.format=text%2Fhtml&rft.identifier=http%3A%2F%2Fcogprints.org%2F156%2F1%2F199709001.html&rft.identifier=++Bekoff%2C+Marc+and+Allen%2C+Colin++(1997)+Intentional+Communication+and+Social+Play%3A+How+and+Why+Animals+Negotiate+and+Agree+to+Play.++%5BBook+Chapter%5D+++++&rft.relation=http%3A%2F%2Fcogprints.org%2F156%2F