?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=Note+on+sleep+in+captive+giraffes+(Giraffa+camelopardalis+reticulata)&rft.creator=Noonan%2C+Michael&rft.creator=Kristal%2C+Dr.+Mark+B.&rft.subject=Animal+Behavior&rft.subject=Comparative+Psychology&rft.description=The+relatively+small+amount+of+time+spent+sleeping+by+giraffes%2C+can+be+attributed+most+directly+to+the+need+for+constant+rumination.+This+is+consonant+with+the+more+general+ecological+notion+that+sleep+patterns+in+prey+species+are+usually+characterized+by+brief%2C+intermittent+periods+of+sleep.&rft.date=1979&rft.type=Journal+(Paginated)&rft.type=PeerReviewed&rft.format=application%2Fpdf&rft.identifier=http%3A%2F%2Fcogprints.org%2F6215%2F1%2Fsleep.pdf&rft.identifier=++Noonan%2C+Michael+and+Kristal%2C+Dr.+Mark+B.++(1979)+Note+on+sleep+in+captive+giraffes+(Giraffa+camelopardalis+reticulata).++%5BJournal+(Paginated)%5D+++++&rft.relation=http%3A%2F%2Fcogprints.org%2F6215%2F