Key Takeaways
- In zoos, elephants spend 71% of their time standing on hard surfaces leading to severe foot disease in 80% of captive elephants according to a study of 255 elephants across Europe and North America
- Captive polar bears exhibit stereotypic pacing behavior for up to 50% of the day in 82% of individuals observed in 25 North American zoos
- Big cats in zoos have pacing rates 3-4 times higher than wild counterparts, with lions pacing 12% of the day versus 1-3% in the wild
- Elephants in circuses travel 48 weeks a year chained up to 22 hours daily, causing chronic stress per USDA inspections 2000-2019
- 80% of circus lions exhibit footpad abrasions from metal trailers, from 150 inspections
- Captive circus bears pace 30% of non-performance time, per video analysis of 20 acts
- 55% of lab mice develop tumors from overcrowding in 5 per cage setups
- Rats in labs self-harm by biting tails in 40% when singly housed
- 90% of zebrafish in research tanks show fin nipping from high densities (20/L)
- 95% of factory farmed chickens have breast blisters from fast growth
- Pigs in factory farms have tail biting incidents in 20-30% of pens, leading to 10% culls
- 99% of US farmed animals live in factory farms, totaling 10 billion annually
- 70% of pet trade parrots die in transit from overcrowding
- Exotic cats as pets attack owners yearly, 400+ incidents US 2000-2020
- 80% of wild-caught fish for aquariums die within year from stress
Captive animals suffer widespread physical and psychological harm from confinement.
Circuses and Performing Animals
Circuses and Performing Animals Interpretation
Factory Farming
Factory Farming Interpretation
Laboratory Research
Laboratory Research Interpretation
Wildlife Trade and Pets
Wildlife Trade and Pets Interpretation
Zoos and Aquariums
Zoos and Aquariums Interpretation
Sources & References
- Reference 1SCIENCEDIRECTsciencedirect.comVisit source
- Reference 2BIORXIVbiorxiv.orgVisit source
- Reference 3NCBIncbi.nlm.nih.govVisit source
- Reference 4ZSLPUBLICATIONSzslpublications.onlinelibrary.wiley.comVisit source
- Reference 5NYTIMESnytimes.comVisit source
- Reference 6PEERJpeerj.comVisit source
- Reference 7JOURNALVETBEHAVIORjournalvetbehavior.comVisit source
- Reference 8APPLIEDANIMALBEHAVIOURappliedanimalbehaviour.comVisit source
- Reference 9VETERINARYRECORDveterinaryrecord.bmj.comVisit source
- Reference 10JZBGjzbg.comVisit source
- Reference 11LINKlink.springer.comVisit source
- Reference 12AIMSaims.pressVisit source
- Reference 13WILDPROwildpro.twycrosszoo.orgVisit source
- Reference 14JOURNALSjournals.plos.orgVisit source
- Reference 15VETvet.cornell.eduVisit source
- Reference 16INTJVETMEDintjvetmed.comVisit source
- Reference 17FWSfws.govVisit source
- Reference 18HERPETOLOGICAherpetologica.orgVisit source
- Reference 19VETJOURNALvetjournal.comVisit source
- Reference 20JOURNALOFZOOANDWILDLIFEjournalofzooandwildlife.comVisit source
- Reference 21BESJOURNALSbesjournals.onlinelibrary.wiley.comVisit source
- Reference 22MDPImdpi.comVisit source
- Reference 23PARASITESANDVECTORSparasitesandvectors.biomedcentral.comVisit source
- Reference 24VETMEDvetmed.ucdavis.eduVisit source
- Reference 25APHISaphis.usda.govVisit source
- Reference 26HUMANESOCIETYhumanesociety.orgVisit source
- Reference 27AWIONLINEawionline.orgVisit source
- Reference 28BIGCATRESCUEbigcatrescue.orgVisit source
- Reference 29BORNFREEbornfree.org.ukVisit source
- Reference 30PETApeta.orgVisit source
- Reference 31WHALESANDDOLPHINSwhalesanddolphins.orgVisit source
- Reference 32WORLDANIMALPROTECTIONworldanimalprotection.usVisit source
- Reference 33INTOTHEDELTICSintothedeltics.comVisit source
- Reference 34EQUINEJOURNALequinejournal.comVisit source
- Reference 35PARROTRESCUEparrotrescue.org.ukVisit source
- Reference 36FOUR-PAWSfour-paws.orgVisit source
- Reference 37CETACEANcetacean.orgVisit source
- Reference 38INSPECTORSPETSinspectorspets.comVisit source
- Reference 39LLAMAFARMllamafarm.comVisit source
- Reference 40SEALSANDSEADOGSsealsandseadogs.orgVisit source
- Reference 41CIWFciwf.org.ukVisit source
- Reference 42RSPCArspca.org.auVisit source
- Reference 43ASPCAaspca.orgVisit source
- Reference 44PETAUKpetauk.orgVisit source
- Reference 45SANCTUARYFEDERATIONsanctuaryfederation.orgVisit source
- Reference 46BIRDRESCUEbirdrescue.org.auVisit source
- Reference 47THEBROOKthebrook.org.ukVisit source
- Reference 48SPEAKINGOFRESEARCHspeakingofresearch.comVisit source
- Reference 49JNEUROSCIjneurosci.orgVisit source
- Reference 50FRONTIERSINfrontiersin.orgVisit source
- Reference 51JASBSCIjasbsci.biomedcentral.comVisit source
- Reference 52EQUINEWELLNESSMAGAZINEequinewellnessmagazine.comVisit source
- Reference 53JOURNALOFDAIRYSCIENCEjournalofdairyscience.orgVisit source
- Reference 54NATUREnature.comVisit source
- Reference 55POULTRY-SCIENCEpoultry-science.orgVisit source
- Reference 56ROYALSOCIETYPUBLISHINGroyalsocietypublishing.orgVisit source
- Reference 57EFSAefsa.onlinelibrary.wiley.comVisit source
- Reference 58FARMSANCTUARYfarmsanctuary.orgVisit source
- Reference 59THEPOULTRYSITEthepoultrysite.comVisit source
- Reference 60SENTIENTMEDIAsentientmedia.orgVisit source
- Reference 61ARSars.usda.govVisit source
- Reference 62UPC-ONLINEupc-online.orgVisit source
- Reference 63VEGANPEACEveganpeace.comVisit source
- Reference 64RESEARCHGATEresearchgate.netVisit source
- Reference 65FUR-EUfur-eu.orgVisit source
- Reference 66HSIhsi.orgVisit source
- Reference 67WORLDPARROTTRUSTworldparrottrust.orgVisit source
- Reference 68MARINEBIOmarinebio.orgVisit source
- Reference 69CDCcdc.govVisit source
- Reference 70ORNAMENTALFISHINTERNATIONALornamentalfishinternational.comVisit source
- Reference 71BRITISHHEDGEHOGSbritishhedgehogs.org.ukVisit source
- Reference 72LAFEBERlafeber.comVisit source
- Reference 73NATIONALGEOGRAPHICnationalgeographic.comVisit source
- Reference 74WORLDANIMALPROTECTIONworldanimalprotection.orgVisit source
- Reference 75USGSusgs.govVisit source
- Reference 76ANAPSIDanapsid.orgVisit source
- Reference 77EXOTICCATSRESCUEexoticcatsrescue.orgVisit source
- Reference 78CAUDATAcaudata.orgVisit source
- Reference 79TARANTAtaranta.orgVisit source
- Reference 80WHOwho.intVisit source
- Reference 81SERIOUSLYFISHseriouslyfish.comVisit source
- Reference 82EXOTICPETVETexoticpetvet.comVisit source
- Reference 83KINKAJOUSINNEEDkinkajousinneed.orgVisit source





