Virginia opossum (English Wikipedia)

Gardner, A.L.; Sunquist, M.E. (2003). "Opossum: Didelphis virginiana". In Feldhamer, G.A.; Thompson, B.C.; Chapman, J.A. (eds.). Wild Mammals of North America: Biology, Management, and Conservation. JHU Press. pp. 3–29. ISBN 978-0-8018-7416-1.
Mithun, Marianne (2001). The Languages of Native North America. Cambridge University Press. p. 332. ISBN 978-0-521-29875-9.
Day, Leslie (10 May 2013). Field Guide to the Natural World of New York City. JHU Press. p. 225. ISBN 978-1-4214-1149-1.

bucknell.edu (Global: 671^st place; English: 1,144^th place)

departments.bucknell.edu

Gardner, A.L. (2005). "Order Didelphimorphia". In Wilson, D.E.; Reeder, D.M (eds.). Mammal Species of the World: A Taxonomic and Geographic Reference (3rd ed.). Johns Hopkins University Press. p. 6. ISBN 978-0-8018-8221-0. OCLC 62265494.

cambridge.org (Global: 209^th place; English: 151^st place)

dictionary.cambridge.org

"PLAY POSSUM | definition in the Cambridge English Dictionary". dictionary.cambridge.org. Retrieved 2020-09-28.

caryinstitute.org (Global: low place; English: low place)

"Give opossums a break". Cary Institute of Ecosystem Studies. 30 March 2015. Retrieved 2020-09-30.
"Why you should brake for opossums". Cary Institute of Ecosystem Studies. 23 July 2012. Retrieved 2020-09-28.

chesapeakebay.net (Global: low place; English: low place)

"Virginia Opossum | Chesapeake Bay Program". www.chesapeakebay.net. Archived from the original on 2020-11-15. Retrieved 2020-11-15.

cyberbee.com (Global: low place; English: low place)

Political Postcards. Cyberbee learning. Last accessed November 19, 2006.

discovermagazine.com (Global: 3,982^nd place; English: 2,975^th place)

Karen Wright Staying Alive. Discover Magazine. November 6, 2003 Accessed Oct 15, 2007.

doi.org (Global: 2^nd place; English: 2^nd place)

Pérez-Hernandez, R.; Lew, D.; Solari, S. (2016). "Didelphis virginiana". IUCN Red List of Threatened Species. 2016 e.T40502A22176259. doi:10.2305/IUCN.UK.2016-1.RLTS.T40502A22176259.en. Retrieved 19 November 2021.
John J. McManus (July 1970), "Behavior of Captive Opossums, Didelphis marsupialis virginiana", American Midland Naturalist, 84 (1): 144–169, doi:10.2307/2423733, JSTOR 2423733
Woodburne, M.O. (2010-07-14). "The Great American Biotic Interchange: Dispersals, Tectonics, Climate, Sea Level and Holding Pens". Journal of Mammalian Evolution. 17 (4): 245–264. doi:10.1007/s10914-010-9144-8. PMC 2987556. PMID 21125025.
Walsh, L. L.; Tucker, P. K. (2017). "Contemporary range expansion of the Virginia opossum (Didelphis virginiana) impacted by humans and snow cover". Canadian Journal of Zoology. 96 (2): 107–115. doi:10.1139/cjz-2017-0071. hdl:1807/81311.
Ashwell, K.w.s. (April 2008). "Encephalization of Australian and New Guinean Marsupials". Brain, Behavior and Evolution. 71 (3): 181–199. doi:10.1159/000114406. ISSN 0006-8977. PMID 18230970. S2CID 7544968.
Hennessy, C.; Hild, K. (September 2021). "Are Virginia opossums really ecological traps for ticks? Groundtruthing laboratory observations". Ticks and Tick-Borne Diseases. 12 (5) 101780. doi:10.1016/j.ttbdis.2021.101780. PMID 34298355. Retrieved 2022-04-20.
Sharon A. Jansa; Robert S. Voss (2011). "Adaptive evolution of the venom-targeted vWF protein in opossums that eat pitvipers". PLOS ONE. 6 (6) e20997. Bibcode:2011PLoSO...620997J. doi:10.1371/journal.pone.0020997. PMC 3120824. PMID 21731638.
Komives, Claire F.; Sanchez, Elda E.; Rathore, Anurag S.; White, Brandon; Balderrama, Michael; Suntravat, Montamas; Cifelli, Angela; Joshi, Varsha (2017). "Opossum peptide that can neutralize rattlesnake venom is expressed in Escherichia coli". Biotechnology Progress. 33 (1): 81–86. doi:10.1002/btpr.2386. ISSN 1520-6033. PMC 5315628. PMID 27718338.
Fisher, Diana O.; Owens, Ian P. F.; Johnson, Christopher N. (2001). "The ecological basis of life history variation in marsupials" (PDF). Ecology. 82 (12): 3531–3540. doi:10.1890/0012-9658(2001)082[3531:TEBOLH]2.0.CO;2. Archived (PDF) from the original on 2017-08-24.
Langworthy, Orthello R. (1932). "The Panniculus Carnosus and Pouch Musculature of the Opossum, a Marsupial". Journal of Mammalogy. 13 (3): 241–251. doi:10.2307/1373999. JSTOR 1373999.
Barr, Thomas R. B. (1963). "Infectious Diseases in the Opossum: A Review". The Journal of Wildlife Management. 27 (1): 53–71. doi:10.2307/3797778. ISSN 0022-541X.
Wright (2012). "Influences of an Urban Environment on Home Range and Body Mass of Virginia Opossums (Didelphis virginiana)". Northeastern Naturalist. 19 (1): 77–86. doi:10.1656/045.019.0106. JSTOR 41429417. S2CID 86663111.

enature.com (Global: low place; English: low place)

"Virginia Opossum Didelphis virginiana". eNature.com. Shearwater Marketing Group. Archived from the original on 2011-05-17. Retrieved 2009-03-24.

esf.edu (Global: low place; English: low place)

"Opossum | Adirondack Ecological Center | SUNY ESF | College of Environmental Science and Forestry". www.esf.edu. Retrieved 2025-12-06.

espn.com (Global: 42^nd place; English: 25^th place)

Keith Sutton. Possum days gone by. ESPN Outdoors. January 12, 2009. Retrieved 2009-12-29.

ethicurean.com (Global: low place; English: low place)

The joy of the 'Joy of Cooking,' circa 1962 Archived 2006-10-30 at the Wayback Machine. Retrieved 2009-12-29.

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poultry.extension.org

"Predator Management for Small and Backyard Poultry Flocks". Cooperative Extension Poultry. Retrieved 2022-04-21.

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With the Wild Things - Transcripts Archived 2013-03-23 at the Wayback Machine. Digitalcollections.fiu.edu. Retrieved on 2011-09-15.

forbes.com (Global: 71^st place; English: 54^th place)

Weinberger, Dawn (2023-10-19). "Are Opossums Dangerous To Humans, Pets And Property?". Forbes Home. Retrieved 2023-12-25.

foxnews.com (Global: 262^nd place; English: 171^st place)

Burke, Peter (5 December 2024). "Arkansas dessert with an animal in its name is award-winning treat with 'no possum included'". Fox News. Retrieved 17 December 2024.

google.com (Global: 109^th place; English: 87^th place)

Gardner, A.L. (2005). "Order Didelphimorphia". In Wilson, D.E.; Reeder, D.M (eds.). Mammal Species of the World: A Taxonomic and Geographic Reference (3rd ed.). Johns Hopkins University Press. p. 6. ISBN 978-0-8018-8221-0. OCLC 62265494.

gpnc.org (Global: low place; English: low place)

Virginia Opossum. Didelphis virginiana Archived 2007-10-24 at the Wayback Machine. Great Plains Nature Center. accessed Oct. 15, 2007

hdl.handle.net (Global: 66^th place; English: 34^th place)

Walsh, L. L.; Tucker, P. K. (2017). "Contemporary range expansion of the Virginia opossum (Didelphis virginiana) impacted by humans and snow cover". Canadian Journal of Zoology. 96 (2): 107–115. doi:10.1139/cjz-2017-0071. hdl:1807/81311.

ilacadofsci.com (Global: low place; English: low place)

Martan, Jan. "The genital tract of the male opossum Didelphis marsupialis virginiana and other marsupials." Trans. I 11 (1983): 3-28.

illinois.edu (Global: 1,178^th place; English: 745^th place)

web.extension.illinois.edu

Wildlife Directory: Virginia Opossum — Living with Wildlife — University of Illinois Extension Archived 2018-05-13 at the Wayback Machine. Web.extension.illinois.edu. Retrieved on 2011-09-15.

vetmed.illinois.edu

Maurer, Steph. "The Helpful Opossum | Wildlife Medical Clinic at Illinois". Archived from the original on 2021-07-16. Retrieved 2022-04-24.

imdb.com (Global: 22^nd place; English: 33^rd place)

"Possum Day". October 13, 1965 – via IMDb.

iucnredlist.org (Global: 39^th place; English: 71^st place)

Pérez-Hernandez, R.; Lew, D.; Solari, S. (2016). "Didelphis virginiana". IUCN Red List of Threatened Species. 2016 e.T40502A22176259. doi:10.2305/IUCN.UK.2016-1.RLTS.T40502A22176259.en. Retrieved 19 November 2021.

jstor.org (Global: 23^rd place; English: 15^th place)

John J. McManus (July 1970), "Behavior of Captive Opossums, Didelphis marsupialis virginiana", American Midland Naturalist, 84 (1): 144–169, doi:10.2307/2423733, JSTOR 2423733
Langworthy, Orthello R. (1932). "The Panniculus Carnosus and Pouch Musculature of the Opossum, a Marsupial". Journal of Mammalogy. 13 (3): 241–251. doi:10.2307/1373999. JSTOR 1373999.
Barr, Thomas R. B. (1963). "Infectious Diseases in the Opossum: A Review". The Journal of Wildlife Management. 27 (1): 53–71. doi:10.2307/3797778. ISSN 0022-541X.
Wright (2012). "Influences of an Urban Environment on Home Range and Body Mass of Virginia Opossums (Didelphis virginiana)". Northeastern Naturalist. 19 (1): 77–86. doi:10.1656/045.019.0106. JSTOR 41429417. S2CID 86663111.

lafeber.com (Global: low place; English: low place)

"Basic Information Sheet: Virginia Opossum". June 11, 2018.

loc.gov (Global: 63^rd place; English: 47^th place)

"Carve dat possum". Library of Congress. Retrieved 2020-11-09.

massaudubon.org (Global: low place; English: low place)

"Virginia Opossum". Mass Audubon. Archived from the original on December 29, 2010. Retrieved May 11, 2011. Opossums are frequently encountered as corpses along highways. Some biologists believe that many die as they feed on road-killed animals – a favorite food. Others believe that the opossums' small brain (5 times smaller than that of a raccoon[sic - erroneous logic]) suggests that they may just be too dumb to get out of the way of vehicles!

merriam-webster.com (Global: 425^th place; English: 373^rd place)

"Possum vs. Opossum: Is There a Difference?". Merriam-Webster. Retrieved 2023-11-12. Textbooks, encyclopedias, and science publications favor opossum, but when it comes to general speech and writing, possum is and has been the far more common choice.

missouri.edu (Global: 423^rd place; English: 3,118^th place)

web.missouri.edu

Krause, William J.; Krause, Winifred A. (2006). The Opossum: Its Amazing Story (PDF). Columbia, Missouri: Department of Pathology and Anatomical Sciences, School of Medicine, University of Missouri. ISBN 9780978599904. Archived from the original (PDF) on 2012-12-11. Retrieved 2012-12-11. 80 pages

natureserve.org (Global: 2,387^th place; English: 1,112^th place)

explorer.natureserve.org

"Didelphis virginiana". NatureServe Explorer. Retrieved 17 April 2024.

ncleg.net (Global: low place; English: low place)

"State marsupial". North Carolina General Assembly. Retrieved 13 August 2014.

news.yahoo.com (Global: 183^rd place; English: 212^th place)

Kelsey, Eric. (January 11, 2011). "Cross-eyed opossum capturing hearts". Reuters. Retrieved January 12, 2011.

nhpr.org (Global: low place; English: 7,166^th place)

Gauzmán, Lau (7 August 2025). "Playing 'possum: NH now has an official state marsupial". New Hampshire Public Radio. Retrieved 23 August 2025.

nih.gov (Global: 5^th place; English: 5^th place)

pubmed.ncbi.nlm.nih.gov

Woodburne, M.O. (2010-07-14). "The Great American Biotic Interchange: Dispersals, Tectonics, Climate, Sea Level and Holding Pens". Journal of Mammalian Evolution. 17 (4): 245–264. doi:10.1007/s10914-010-9144-8. PMC 2987556. PMID 21125025.
Ashwell, K.w.s. (April 2008). "Encephalization of Australian and New Guinean Marsupials". Brain, Behavior and Evolution. 71 (3): 181–199. doi:10.1159/000114406. ISSN 0006-8977. PMID 18230970. S2CID 7544968.
Hennessy, C.; Hild, K. (September 2021). "Are Virginia opossums really ecological traps for ticks? Groundtruthing laboratory observations". Ticks and Tick-Borne Diseases. 12 (5) 101780. doi:10.1016/j.ttbdis.2021.101780. PMID 34298355. Retrieved 2022-04-20.
Sharon A. Jansa; Robert S. Voss (2011). "Adaptive evolution of the venom-targeted vWF protein in opossums that eat pitvipers". PLOS ONE. 6 (6) e20997. Bibcode:2011PLoSO...620997J. doi:10.1371/journal.pone.0020997. PMC 3120824. PMID 21731638.
Komives, Claire F.; Sanchez, Elda E.; Rathore, Anurag S.; White, Brandon; Balderrama, Michael; Suntravat, Montamas; Cifelli, Angela; Joshi, Varsha (2017). "Opossum peptide that can neutralize rattlesnake venom is expressed in Escherichia coli". Biotechnology Progress. 33 (1): 81–86. doi:10.1002/btpr.2386. ISSN 1520-6033. PMC 5315628. PMID 27718338.

ncbi.nlm.nih.gov

Woodburne, M.O. (2010-07-14). "The Great American Biotic Interchange: Dispersals, Tectonics, Climate, Sea Level and Holding Pens". Journal of Mammalian Evolution. 17 (4): 245–264. doi:10.1007/s10914-010-9144-8. PMC 2987556. PMID 21125025.
Sharon A. Jansa; Robert S. Voss (2011). "Adaptive evolution of the venom-targeted vWF protein in opossums that eat pitvipers". PLOS ONE. 6 (6) e20997. Bibcode:2011PLoSO...620997J. doi:10.1371/journal.pone.0020997. PMC 3120824. PMID 21731638.
Komives, Claire F.; Sanchez, Elda E.; Rathore, Anurag S.; White, Brandon; Balderrama, Michael; Suntravat, Montamas; Cifelli, Angela; Joshi, Varsha (2017). "Opossum peptide that can neutralize rattlesnake venom is expressed in Escherichia coli". Biotechnology Progress. 33 (1): 81–86. doi:10.1002/btpr.2386. ISSN 1520-6033. PMC 5315628. PMID 27718338.

npca.org (Global: low place; English: low place)

Errick, Jennifer (2 May 2018). "The Only Marsupial in U.S. National Parks". National Parks Conservation Association. Archived from the original on 2 November 2020. Retrieved 13 June 2025.

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Kirchner, Jane (13 June 2017). "Opossums: Unsung Heroes in the Fight Against Ticks and Lyme Disease". National Wildlife Federation. Retrieved 26 August 2019.

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"Opossum Defense Mechanisms | Opossum Society of the United States". Retrieved 2020-09-28.
Cannibalism in the Opossum. Opossum Society. Accessed May 7, 2007.
"Reproduction – Life Cycle | Opossum Society of the United States". Retrieved 2020-09-30.
"Reproduction – Life Cycle - Opossum Society of the United States". opossumsocietyus.org.

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Possum History Archived 2011-07-15 at the Wayback Machine. Retrieved 2009-12-29.
Possum Politics Archived 2006-12-16 at the Wayback Machine. 'Possum Network. Last accessed November 19, 2006.

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"Virginia Opossum". www.psu.edu. Archived from the original on 2010-06-01. Retrieved 2020-09-28.

sciencedirect.com (Global: 137^th place; English: 146^th place)

Hennessy, C.; Hild, K. (September 2021). "Are Virginia opossums really ecological traps for ticks? Groundtruthing laboratory observations". Ticks and Tick-Borne Diseases. 12 (5) 101780. doi:10.1016/j.ttbdis.2021.101780. PMID 34298355. Retrieved 2022-04-20.

semanticscholar.org (Global: 15^th place; English: 8^th place)

api.semanticscholar.org

Ashwell, K.w.s. (April 2008). "Encephalization of Australian and New Guinean Marsupials". Brain, Behavior and Evolution. 71 (3): 181–199. doi:10.1159/000114406. ISSN 0006-8977. PMID 18230970. S2CID 7544968.
Wright (2012). "Influences of an Urban Environment on Home Range and Body Mass of Virginia Opossums (Didelphis virginiana)". Northeastern Naturalist. 19 (1): 77–86. doi:10.1656/045.019.0106. JSTOR 41429417. S2CID 86663111.

si.edu (Global: 256^th place; English: 197^th place)

nationalzoo.si.edu

"Virginia opossum". Smithsonian's National Zoo. 2018-01-05. Retrieved 2020-09-28.

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The Life Span of Animals Accessed Oct. 15, 2007

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depts.ttu.edu

"Virginia Opossum (Didelphis virginiana)". Natural Science Research Laboratory, Texas Tech University. Archived from the original on 2024-05-12. Retrieved 2025-10-05.

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Harrington, Arianna (12 May 2015) [28 April 2015]. Hulbert Jr., Richard C.; Valdes, Natali (eds.). "Didelphis virginiana - Florida Vertebrate Fossils". Florida Museum. University of Florida. Retrieved 17 April 2024.

umich.edu (Global: 429^th place; English: 307^th place)

animaldiversity.ummz.umich.edu

"ADW: Didelphis virginiana: Information (1974-05-02)". animaldiversity.ummz.umich.edu. Retrieved 2011-09-15.

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espace.library.uq.edu.au

Fisher, Diana O.; Owens, Ian P. F.; Johnson, Christopher N. (2001). "The ecological basis of life history variation in marsupials" (PDF). Ecology. 82 (12): 3531–3540. doi:10.1890/0012-9658(2001)082[3531:TEBOLH]2.0.CO;2. Archived (PDF) from the original on 2017-08-24.

usatoday.com (Global: 55^th place; English: 36^th place)

"Are opossums dangerous? They can be, but they're also good for your backyard". USA TODAY. Retrieved 2023-12-25.

web.archive.org (Global: 1^st place; English: 1^st place)

Errick, Jennifer (2 May 2018). "The Only Marsupial in U.S. National Parks". National Parks Conservation Association. Archived from the original on 2 November 2020. Retrieved 13 June 2025.
Krause, William J.; Krause, Winifred A. (2006). The Opossum: Its Amazing Story (PDF). Columbia, Missouri: Department of Pathology and Anatomical Sciences, School of Medicine, University of Missouri. ISBN 9780978599904. Archived from the original (PDF) on 2012-12-11. Retrieved 2012-12-11. 80 pages
Wildlife Directory: Virginia Opossum — Living with Wildlife — University of Illinois Extension Archived 2018-05-13 at the Wayback Machine. Web.extension.illinois.edu. Retrieved on 2011-09-15.
With the Wild Things - Transcripts Archived 2013-03-23 at the Wayback Machine. Digitalcollections.fiu.edu. Retrieved on 2011-09-15.
Mary Stockard, AWRC Mammal Supervisor (2001) Raising Orphaned Baby Opossums. AWRC.org
"Virginia Opossum (Didelphis virginiana)". Natural Science Research Laboratory, Texas Tech University. Archived from the original on 2024-05-12. Retrieved 2025-10-05.
"Virginia Opossum". Mass Audubon. Archived from the original on December 29, 2010. Retrieved May 11, 2011. Opossums are frequently encountered as corpses along highways. Some biologists believe that many die as they feed on road-killed animals – a favorite food. Others believe that the opossums' small brain (5 times smaller than that of a raccoon[sic - erroneous logic]) suggests that they may just be too dumb to get out of the way of vehicles!
"Virginia Opossum". www.psu.edu. Archived from the original on 2010-06-01. Retrieved 2020-09-28.
Maurer, Steph. "The Helpful Opossum | Wildlife Medical Clinic at Illinois". Archived from the original on 2021-07-16. Retrieved 2022-04-24.
"Virginia Opossum | Chesapeake Bay Program". www.chesapeakebay.net. Archived from the original on 2020-11-15. Retrieved 2020-11-15.
"Virginia Opossum Didelphis virginiana". eNature.com. Shearwater Marketing Group. Archived from the original on 2011-05-17. Retrieved 2009-03-24.
Fisher, Diana O.; Owens, Ian P. F.; Johnson, Christopher N. (2001). "The ecological basis of life history variation in marsupials" (PDF). Ecology. 82 (12): 3531–3540. doi:10.1890/0012-9658(2001)082[3531:TEBOLH]2.0.CO;2. Archived (PDF) from the original on 2017-08-24.
Virginia Opossum. Didelphis virginiana Archived 2007-10-24 at the Wayback Machine. Great Plains Nature Center. accessed Oct. 15, 2007
Chrysti the Wordsmith > Radio Scripts > Opossum. Retrieved 2009-12-29.
Possum History Archived 2011-07-15 at the Wayback Machine. Retrieved 2009-12-29.
The joy of the 'Joy of Cooking,' circa 1962 Archived 2006-10-30 at the Wayback Machine. Retrieved 2009-12-29.
opossum pie Archived 2011-07-18 at the Wayback Machine. Retrieved 2009-12-29.
Possum Politics Archived 2006-12-16 at the Wayback Machine. 'Possum Network. Last accessed November 19, 2006.
Kelsey, Eric. (28 February 2011). "German celebrity opossum misses one Oscar pick". Reuters. Retrieved 6 March 2011.
Keyes, Norman. "About the Ruth and Raymond G Perelman Building" (PDF). Philadelphia Museum of Art. p. 2. Archived (PDF) from the original on 20 October 2022. Retrieved 4 May 2025.

wildgamerecipes.org (Global: low place; English: low place)

Wild Game Recipes online. Retrieved 2009-12-29.

wildlifeillinois.org (Global: low place; English: low place)

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Hennessy, Cecelia. "Debunking the Myth: Opossums Don't Eat Ticks". Outdoor Illinois Journal.

worldcat.org (Global: 4^th place; English: 4^th place)

search.worldcat.org

Gardner, A.L. (2005). "Order Didelphimorphia". In Wilson, D.E.; Reeder, D.M (eds.). Mammal Species of the World: A Taxonomic and Geographic Reference (3rd ed.). Johns Hopkins University Press. p. 6. ISBN 978-0-8018-8221-0. OCLC 62265494.
Ashwell, K.w.s. (April 2008). "Encephalization of Australian and New Guinean Marsupials". Brain, Behavior and Evolution. 71 (3): 181–199. doi:10.1159/000114406. ISSN 0006-8977. PMID 18230970. S2CID 7544968.
Komives, Claire F.; Sanchez, Elda E.; Rathore, Anurag S.; White, Brandon; Balderrama, Michael; Suntravat, Montamas; Cifelli, Angela; Joshi, Varsha (2017). "Opossum peptide that can neutralize rattlesnake venom is expressed in Escherichia coli". Biotechnology Progress. 33 (1): 81–86. doi:10.1002/btpr.2386. ISSN 1520-6033. PMC 5315628. PMID 27718338.
Barr, Thomas R. B. (1963). "Infectious Diseases in the Opossum: A Review". The Journal of Wildlife Management. 27 (1): 53–71. doi:10.2307/3797778. ISSN 0022-541X.

writers-bbs.com (Global: low place; English: low place)

opossum pie Archived 2011-07-18 at the Wayback Machine. Retrieved 2009-12-29.

Virginia opossum (English Wikipedia)

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imdb.com (Global: 22nd place; English: 33rd place)

iucnredlist.org (Global: 39th place; English: 71st place)

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massaudubon.org (Global: low place; English: low place)

merriam-webster.com (Global: 425th place; English: 373rd place)

missouri.edu (Global: 423rd place; English: 3,118th place)

web.missouri.edu

natureserve.org (Global: 2,387th place; English: 1,112th place)

explorer.natureserve.org

ncleg.net (Global: low place; English: low place)

news.yahoo.com (Global: 183rd place; English: 212th place)

nhpr.org (Global: low place; English: 7,166th place)

nih.gov (Global: 5th place; English: 5th place)

pubmed.ncbi.nlm.nih.gov

ncbi.nlm.nih.gov

npca.org (Global: low place; English: low place)

nwf.org (Global: low place; English: low place)

blog.nwf.org

opossumsocietyus.org (Global: low place; English: low place)

osu.edu (Global: 2,360th place; English: 1,459th place)

ohioline.osu.edu

philamuseum.org (Global: 8,590th place; English: 6,143rd place)

legacyweb.philamuseum.org

possumnetwork.com (Global: low place; English: low place)

psu.edu (Global: 299th place; English: 159th place)

sciencedirect.com (Global: 137th place; English: 146th place)

semanticscholar.org (Global: 15th place; English: 8th place)

api.semanticscholar.org

si.edu (Global: 256th place; English: 197th place)

nationalzoo.si.edu

sonic.net (Global: low place; English: low place)

stateoftomorrow.com (Global: low place; English: low place)

ttu.edu (Global: 4,794th place; English: 2,995th place)

depts.ttu.edu

ucanr.edu (Global: low place; English: 6,567th place)

ipm.ucanr.edu

ufl.edu (Global: 880th place; English: 578th place)

floridamuseum.ufl.edu

umich.edu (Global: 429th place; English: 307th place)

animaldiversity.ummz.umich.edu

uq.edu.au (Global: 3,996th place; English: 2,378th place)

espace.library.uq.edu.au

usatoday.com (Global: 55th place; English: 36th place)

web.archive.org (Global: 1st place; English: 1st place)

adsabs.harvard.edu (Global: 14^th place; English: 9^th place)

animaldiversity.org (Global: 1,343^rd place; English: 1,384^th place)

bangordailynews.com (Global: 4,328^th place; English: 2,111^th place)

books.google.com (Global: 3^rd place; English: 3^rd place)

bucknell.edu (Global: 671^st place; English: 1,144^th place)

cambridge.org (Global: 209^th place; English: 151^st place)

discovermagazine.com (Global: 3,982^nd place; English: 2,975^th place)

doi.org (Global: 2^nd place; English: 2^nd place)

espn.com (Global: 42^nd place; English: 25^th place)

fiu.edu (Global: 1,561^st place; English: 1,512^th place)

forbes.com (Global: 71^st place; English: 54^th place)

foxnews.com (Global: 262^nd place; English: 171^st place)

google.com (Global: 109^th place; English: 87^th place)

hdl.handle.net (Global: 66^th place; English: 34^th place)

illinois.edu (Global: 1,178^th place; English: 745^th place)

imdb.com (Global: 22^nd place; English: 33^rd place)

iucnredlist.org (Global: 39^th place; English: 71^st place)

jstor.org (Global: 23^rd place; English: 15^th place)

loc.gov (Global: 63^rd place; English: 47^th place)

merriam-webster.com (Global: 425^th place; English: 373^rd place)

missouri.edu (Global: 423^rd place; English: 3,118^th place)

natureserve.org (Global: 2,387^th place; English: 1,112^th place)

news.yahoo.com (Global: 183^rd place; English: 212^th place)

nhpr.org (Global: low place; English: 7,166^th place)

nih.gov (Global: 5^th place; English: 5^th place)

osu.edu (Global: 2,360^th place; English: 1,459^th place)

philamuseum.org (Global: 8,590^th place; English: 6,143^rd place)

psu.edu (Global: 299^th place; English: 159^th place)

sciencedirect.com (Global: 137^th place; English: 146^th place)

semanticscholar.org (Global: 15^th place; English: 8^th place)

si.edu (Global: 256^th place; English: 197^th place)

ttu.edu (Global: 4,794^th place; English: 2,995^th place)

ucanr.edu (Global: low place; English: 6,567^th place)

ufl.edu (Global: 880^th place; English: 578^th place)

umich.edu (Global: 429^th place; English: 307^th place)

uq.edu.au (Global: 3,996^th place; English: 2,378^th place)

usatoday.com (Global: 55^th place; English: 36^th place)

web.archive.org (Global: 1^st place; English: 1^st place)

worldcat.org (Global: 4^th place; English: 4^th place)