Two-toed sloth (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Two-toed sloth" in English language version.

refsWebsite

Global rank English rank

18doi.org

2^nd place

13nih.gov

4^th place

8worldcat.org

5^th place

7harvard.edu

18^th place

17^th place

5semanticscholar.org

11^th place

8^th place

5web.archive.org

1^st place

2wiley.com

222^nd place

297^th place

1bucknell.edu

733^rd place

1,013^th place

1google.com

163^rd place

185^th place

1amnh.org

1,578^th place

1,521^st place

1whiterose.ac.uk

4,124^th place

2,320^th place

1researchgate.net

120^th place

125^th place

1handle.net

102^nd place

76^th place

1sloth-world.org

low place

1animaldiversity.org

1,859^th place

1,573^rd place

1nature.com

234^th place

397^th place

1books.google.com

3^rd place

1archive.org

6^th place

1britannica.com

40^th place

58^th place

1sciencedirect.com

149^th place

178^th place

1umich.edu

459^th place

360^th place

1bioone.org

3,430^th place

3,114^th place

1sciencedaily.com

993^rd place

920^th place

1uh.edu

3,907^th place

2,604^th place

amnh.org

digitallibrary.amnh.org

Anderson, S. (1997). "Mammals of Bolivia, Taxonomy and Distribution". Bulletin of the AMNH (231): 168.

animaldiversity.org

Myers, Phil (2001). "Family Megalonychidae: two-toed sloths". Animal Diversity Web. University of Michigan. Archived from the original on 11 March 2017. Retrieved 11 March 2017.

archive.org

Dickman, Christopher R. (1984). Macdonald, D. (ed.). The Encyclopedia of Mammals. New York: Facts on File. pp. 776–779. ISBN 0-87196-871-1.

bioone.org

Gómez-Hoyos, Diego A.; González-Maya, José F.; Pacheco, Jesús; Seisdedos-Vergara, Seisdedos-Vergara; Barrio-Amorós, César L.; Ceballos, Gerardo (December 2017). "Mineral-Lick Use By Choloepus hoffmanni (Pilosa: Megalonychidae) At Las Cruces Biological Station, Coto Brus, Costa Rica". The Southwestern Naturalist. 62 (4): 278–280. doi:10.1894/0038-4909-62.4.278. ISSN 0038-4909. S2CID 92499258.

books.google.com

White, J.L.; MacPhee, R.D.E. (2001). "The sloths of the West Indies: a systematic and phylogenetic review". In Woods, C.A.; Sergile, F.E. (eds.). Biogeography of the West Indies: Patterns and Perspectives. Boca Raton, London, New York, and Washington, D.C.: CRC Press. pp. 201–235. doi:10.1201/9781420039481-14. ISBN 978-0-8493-2001-9.

britannica.com

"sloth." Encyclopædia Britannica.

bucknell.edu

departments.bucknell.edu

Gardner, A. L. (2005). "Genus Choloepus". In Wilson, D. E.; Reeder, D. M. (eds.). Mammal Species of the World: A Taxonomic and Geographic Reference (3rd ed.). Johns Hopkins University Press. pp. 101–102. ISBN 978-0-8018-8221-0. OCLC 62265494.

doi.org

Presslee, S.; Slater, G. J.; Pujos, F.; Forasiepi, A. M.; Fischer, R.; Molloy, K.; et al. (2019). "Palaeoproteomics resolves sloth relationships" (PDF). Nature Ecology & Evolution. 3 (7): 1121–1130. Bibcode:2019NatEE...3.1121P. doi:10.1038/s41559-019-0909-z. PMID 31171860. S2CID 174813630. Archived (PDF) from the original on 12 September 2020. Retrieved 18 September 2020.
Delsuc, F.; Kuch, M.; Gibb, G. C.; Karpinski, E.; Hackenberger, D.; Szpak, P.; Martínez, J. G.; Mead, J. I.; McDonald, H. G.; MacPhee, R.D.E.; Billet, G.; Hautier, L.; Poinar, H. N. (2019). "Ancient Mitogenomes Reveal the Evolutionary History and Biogeography of Sloths". Current Biology. 29 (12): 2031–2042.e6. Bibcode:2019CBio...29E2031D. doi:10.1016/j.cub.2019.05.043. hdl:11336/136908. PMID 31178321.
Slater, G. J.; Cui, P.; Forasiepi, A. M.; Lenz, D.; Tsangaras, K.; Voirin, B.; de Moraes-Barros, N.; MacPhee, R. D. E.; Greenwood, A. D. (14 February 2016). "Evolutionary Relationships among Extinct and Extant Sloths: The Evidence of Mitogenomes and Retroviruses". Genome Biology and Evolution. 8 (3): 607–621. doi:10.1093/gbe/evw023. PMC 4824031. PMID 26878870.
Moraes-Barros, N.; Arteaga, M. C. (1 June 2015). "Genetic diversity in Xenarthra and its relevance to patterns of neotropical biodiversity". Journal of Mammalogy. 96 (4): 690–702. doi:10.1093/jmammal/gyv077.
Muizon, C. de; McDonald, H. G. (May 1995). "An aquatic sloth from the Pliocene of Peru". Nature. 375 (6528): 224–227. Bibcode:1995Natur.375..224M. doi:10.1038/375224a0. ISSN 1476-4687. S2CID 4369283.
Hoss, Matthias; Dilling, Amrei; Currant, Andrew; Paabo, Svante (9 January 1996). "Molecular phylogeny of the extinct ground sloth Mylodon darwinii". Proceedings of the National Academy of Sciences. 93 (1): 181–185. Bibcode:1996PNAS...93..181H. doi:10.1073/pnas.93.1.181. PMC 40202. PMID 8552600.
White, J.L.; MacPhee, R.D.E. (2001). "The sloths of the West Indies: a systematic and phylogenetic review". In Woods, C.A.; Sergile, F.E. (eds.). Biogeography of the West Indies: Patterns and Perspectives. Boca Raton, London, New York, and Washington, D.C.: CRC Press. pp. 201–235. doi:10.1201/9781420039481-14. ISBN 978-0-8493-2001-9.
Gaudin, Timothy (2004). "Phylogenetic Relationships among Sloths (Mammalia, Xenarthra, Tardigrada): The Craniodental Evidence". Zoological Journal of the Linnean Society. 140 (2): 255–305. doi:10.1111/j.1096-3642.2003.00100.x.
Raj Pant, Sara; Goswami, Anjali; Finarelli, John A (2014). "Complex body size trends in the evolution of sloths (Xenarthra: Pilosa)". BMC Evolutionary Biology. 14 (1): 184. Bibcode:2014BMCEE..14..184R. doi:10.1186/s12862-014-0184-1. PMC 4243956. PMID 25319928.
Granatosky, Michael C.; Karantanis, Nikolaos E.; Rychlik, Leszek; Youlatos, Dionisios (December 2018). "A suspensory way of life: Integrating locomotion, postures, limb movements, and forces in two-toed sloths Choloepus didactylus (Megalonychidae, Folivora, Pilosa): GRANATOSKY et al". Journal of Experimental Zoology Part A: Ecological and Integrative Physiology. 329 (10): 570–588. doi:10.1002/jez.2221. PMID 30129260. S2CID 52050040.
Gilmore, D. P.; Da-Costa, C. P.; Duarte, D. P. F. (February 2000). "An update on the physiology of two- and three-toed sloths". Brazilian Journal of Medical and Biological Research. 33 (2): 129–146. doi:10.1590/S0100-879X2000000200001. ISSN 0100-879X. PMID 10657054.
Troll, S.; Gottschalk, J.; Seeburger, J.; Ziemssen, E.; Häfner, M.; Thielebein, J.; Einspanier, A. (1 August 2013). "Characterization of the ovarian cycle in the two-toed sloths (Choloepus didactylus): An innovative, reliable, and noninvasive method using fecal hormone analyses". Theriogenology. 80 (3): 275–283. doi:10.1016/j.theriogenology.2013.04.007. ISSN 0093-691X. PMID 23743067.
Garcés-Restrepo, Mario F.; Pauli, Jonathan N.; Peery, M. Zachariah (2018). "Natal dispersal of tree sloths in a human-dominated landscape: Implications for tropical biodiversity conservation". Journal of Applied Ecology. 55 (5): 2253–2262. Bibcode:2018JApEc..55.2253G. doi:10.1111/1365-2664.13138. ISSN 1365-2664.
Gómez-Hoyos, Diego A.; González-Maya, José F.; Pacheco, Jesús; Seisdedos-Vergara, Seisdedos-Vergara; Barrio-Amorós, César L.; Ceballos, Gerardo (December 2017). "Mineral-Lick Use By Choloepus hoffmanni (Pilosa: Megalonychidae) At Las Cruces Biological Station, Coto Brus, Costa Rica". The Southwestern Naturalist. 62 (4): 278–280. doi:10.1894/0038-4909-62.4.278. ISSN 0038-4909. S2CID 92499258.
Blake, John G.; Mosquera, Diego; Guerra, Jaime; Loiselle, Bette A.; Romo, David; Swing, Kelly (June 2011). "Mineral Licks as Diversity Hotspots in Lowland Forest of Eastern Ecuador". Diversity. 3 (2): 217–234. doi:10.3390/d3020217. ISSN 1424-2818.
Voirin, Bryson; Kays, Roland; Wikelski, Martin; Lowman, Margaret (2013), Lowman, Margaret; Devy, Soubadra; Ganesh, T. (eds.), "Why do Sloths Poop on the Ground?", Treetops at Risk: Challenges of Global Canopy Ecology and Conservation, Springer, pp. 195–199, doi:10.1007/978-1-4614-7161-5_19, ISBN 978-1-4614-7161-5
Naples, Virginia L. (January 1985). "Form and function of the masticatory musculature in the tree sloths, Bradypus and Choloepus". Journal of Morphology. 183 (1): 25–50. doi:10.1002/jmor.1051830104. ISSN 0362-2525. PMID 3973924. S2CID 36168956.
Frietson Galis (1999). "Why do almost all mammals have seven cervical vertebrae? Developmental constraints, Hox genes and Cancer" (PDF). Journal of Experimental Zoology. 285 (1): 19–26. Bibcode:1999JEZ...285...19G. doi:10.1002/(SICI)1097-010X(19990415)285:1<19::AID-JEZ3>3.0.CO;2-Z. PMID 10327647. Archived from the original (PDF) on 10 November 2004.

google.com

Gardner, A. L. (2005). "Genus Choloepus". In Wilson, D. E.; Reeder, D. M. (eds.). Mammal Species of the World: A Taxonomic and Geographic Reference (3rd ed.). Johns Hopkins University Press. pp. 101–102. ISBN 978-0-8018-8221-0. OCLC 62265494.

handle.net

hdl.handle.net

Delsuc, F.; Kuch, M.; Gibb, G. C.; Karpinski, E.; Hackenberger, D.; Szpak, P.; Martínez, J. G.; Mead, J. I.; McDonald, H. G.; MacPhee, R.D.E.; Billet, G.; Hautier, L.; Poinar, H. N. (2019). "Ancient Mitogenomes Reveal the Evolutionary History and Biogeography of Sloths". Current Biology. 29 (12): 2031–2042.e6. Bibcode:2019CBio...29E2031D. doi:10.1016/j.cub.2019.05.043. hdl:11336/136908. PMID 31178321.

harvard.edu

ui.adsabs.harvard.edu

Presslee, S.; Slater, G. J.; Pujos, F.; Forasiepi, A. M.; Fischer, R.; Molloy, K.; et al. (2019). "Palaeoproteomics resolves sloth relationships" (PDF). Nature Ecology & Evolution. 3 (7): 1121–1130. Bibcode:2019NatEE...3.1121P. doi:10.1038/s41559-019-0909-z. PMID 31171860. S2CID 174813630. Archived (PDF) from the original on 12 September 2020. Retrieved 18 September 2020.
Delsuc, F.; Kuch, M.; Gibb, G. C.; Karpinski, E.; Hackenberger, D.; Szpak, P.; Martínez, J. G.; Mead, J. I.; McDonald, H. G.; MacPhee, R.D.E.; Billet, G.; Hautier, L.; Poinar, H. N. (2019). "Ancient Mitogenomes Reveal the Evolutionary History and Biogeography of Sloths". Current Biology. 29 (12): 2031–2042.e6. Bibcode:2019CBio...29E2031D. doi:10.1016/j.cub.2019.05.043. hdl:11336/136908. PMID 31178321.
Muizon, C. de; McDonald, H. G. (May 1995). "An aquatic sloth from the Pliocene of Peru". Nature. 375 (6528): 224–227. Bibcode:1995Natur.375..224M. doi:10.1038/375224a0. ISSN 1476-4687. S2CID 4369283.
Hoss, Matthias; Dilling, Amrei; Currant, Andrew; Paabo, Svante (9 January 1996). "Molecular phylogeny of the extinct ground sloth Mylodon darwinii". Proceedings of the National Academy of Sciences. 93 (1): 181–185. Bibcode:1996PNAS...93..181H. doi:10.1073/pnas.93.1.181. PMC 40202. PMID 8552600.
Raj Pant, Sara; Goswami, Anjali; Finarelli, John A (2014). "Complex body size trends in the evolution of sloths (Xenarthra: Pilosa)". BMC Evolutionary Biology. 14 (1): 184. Bibcode:2014BMCEE..14..184R. doi:10.1186/s12862-014-0184-1. PMC 4243956. PMID 25319928.
Garcés-Restrepo, Mario F.; Pauli, Jonathan N.; Peery, M. Zachariah (2018). "Natal dispersal of tree sloths in a human-dominated landscape: Implications for tropical biodiversity conservation". Journal of Applied Ecology. 55 (5): 2253–2262. Bibcode:2018JApEc..55.2253G. doi:10.1111/1365-2664.13138. ISSN 1365-2664.
Frietson Galis (1999). "Why do almost all mammals have seven cervical vertebrae? Developmental constraints, Hox genes and Cancer" (PDF). Journal of Experimental Zoology. 285 (1): 19–26. Bibcode:1999JEZ...285...19G. doi:10.1002/(SICI)1097-010X(19990415)285:1<19::AID-JEZ3>3.0.CO;2-Z. PMID 10327647. Archived from the original (PDF) on 10 November 2004.

nature.com

Muizon, C. de; McDonald, H. G. (May 1995). "An aquatic sloth from the Pliocene of Peru". Nature. 375 (6528): 224–227. Bibcode:1995Natur.375..224M. doi:10.1038/375224a0. ISSN 1476-4687. S2CID 4369283.

nih.gov

pubmed.ncbi.nlm.nih.gov

Presslee, S.; Slater, G. J.; Pujos, F.; Forasiepi, A. M.; Fischer, R.; Molloy, K.; et al. (2019). "Palaeoproteomics resolves sloth relationships" (PDF). Nature Ecology & Evolution. 3 (7): 1121–1130. Bibcode:2019NatEE...3.1121P. doi:10.1038/s41559-019-0909-z. PMID 31171860. S2CID 174813630. Archived (PDF) from the original on 12 September 2020. Retrieved 18 September 2020.
Delsuc, F.; Kuch, M.; Gibb, G. C.; Karpinski, E.; Hackenberger, D.; Szpak, P.; Martínez, J. G.; Mead, J. I.; McDonald, H. G.; MacPhee, R.D.E.; Billet, G.; Hautier, L.; Poinar, H. N. (2019). "Ancient Mitogenomes Reveal the Evolutionary History and Biogeography of Sloths". Current Biology. 29 (12): 2031–2042.e6. Bibcode:2019CBio...29E2031D. doi:10.1016/j.cub.2019.05.043. hdl:11336/136908. PMID 31178321.
Slater, G. J.; Cui, P.; Forasiepi, A. M.; Lenz, D.; Tsangaras, K.; Voirin, B.; de Moraes-Barros, N.; MacPhee, R. D. E.; Greenwood, A. D. (14 February 2016). "Evolutionary Relationships among Extinct and Extant Sloths: The Evidence of Mitogenomes and Retroviruses". Genome Biology and Evolution. 8 (3): 607–621. doi:10.1093/gbe/evw023. PMC 4824031. PMID 26878870.
Hoss, Matthias; Dilling, Amrei; Currant, Andrew; Paabo, Svante (9 January 1996). "Molecular phylogeny of the extinct ground sloth Mylodon darwinii". Proceedings of the National Academy of Sciences. 93 (1): 181–185. Bibcode:1996PNAS...93..181H. doi:10.1073/pnas.93.1.181. PMC 40202. PMID 8552600.
Raj Pant, Sara; Goswami, Anjali; Finarelli, John A (2014). "Complex body size trends in the evolution of sloths (Xenarthra: Pilosa)". BMC Evolutionary Biology. 14 (1): 184. Bibcode:2014BMCEE..14..184R. doi:10.1186/s12862-014-0184-1. PMC 4243956. PMID 25319928.
Granatosky, Michael C.; Karantanis, Nikolaos E.; Rychlik, Leszek; Youlatos, Dionisios (December 2018). "A suspensory way of life: Integrating locomotion, postures, limb movements, and forces in two-toed sloths Choloepus didactylus (Megalonychidae, Folivora, Pilosa): GRANATOSKY et al". Journal of Experimental Zoology Part A: Ecological and Integrative Physiology. 329 (10): 570–588. doi:10.1002/jez.2221. PMID 30129260. S2CID 52050040.
Gilmore, D. P.; Da-Costa, C. P.; Duarte, D. P. F. (February 2000). "An update on the physiology of two- and three-toed sloths". Brazilian Journal of Medical and Biological Research. 33 (2): 129–146. doi:10.1590/S0100-879X2000000200001. ISSN 0100-879X. PMID 10657054.
Troll, S.; Gottschalk, J.; Seeburger, J.; Ziemssen, E.; Häfner, M.; Thielebein, J.; Einspanier, A. (1 August 2013). "Characterization of the ovarian cycle in the two-toed sloths (Choloepus didactylus): An innovative, reliable, and noninvasive method using fecal hormone analyses". Theriogenology. 80 (3): 275–283. doi:10.1016/j.theriogenology.2013.04.007. ISSN 0093-691X. PMID 23743067.
Naples, Virginia L. (January 1985). "Form and function of the masticatory musculature in the tree sloths, Bradypus and Choloepus". Journal of Morphology. 183 (1): 25–50. doi:10.1002/jmor.1051830104. ISSN 0362-2525. PMID 3973924. S2CID 36168956.
Frietson Galis (1999). "Why do almost all mammals have seven cervical vertebrae? Developmental constraints, Hox genes and Cancer" (PDF). Journal of Experimental Zoology. 285 (1): 19–26. Bibcode:1999JEZ...285...19G. doi:10.1002/(SICI)1097-010X(19990415)285:1<19::AID-JEZ3>3.0.CO;2-Z. PMID 10327647. Archived from the original (PDF) on 10 November 2004.

ncbi.nlm.nih.gov

Slater, G. J.; Cui, P.; Forasiepi, A. M.; Lenz, D.; Tsangaras, K.; Voirin, B.; de Moraes-Barros, N.; MacPhee, R. D. E.; Greenwood, A. D. (14 February 2016). "Evolutionary Relationships among Extinct and Extant Sloths: The Evidence of Mitogenomes and Retroviruses". Genome Biology and Evolution. 8 (3): 607–621. doi:10.1093/gbe/evw023. PMC 4824031. PMID 26878870.
Hoss, Matthias; Dilling, Amrei; Currant, Andrew; Paabo, Svante (9 January 1996). "Molecular phylogeny of the extinct ground sloth Mylodon darwinii". Proceedings of the National Academy of Sciences. 93 (1): 181–185. Bibcode:1996PNAS...93..181H. doi:10.1073/pnas.93.1.181. PMC 40202. PMID 8552600.
Raj Pant, Sara; Goswami, Anjali; Finarelli, John A (2014). "Complex body size trends in the evolution of sloths (Xenarthra: Pilosa)". BMC Evolutionary Biology. 14 (1): 184. Bibcode:2014BMCEE..14..184R. doi:10.1186/s12862-014-0184-1. PMC 4243956. PMID 25319928.

researchgate.net

Delsuc, F.; Kuch, M.; Gibb, G. C.; Karpinski, E.; Hackenberger, D.; Szpak, P.; Martínez, J. G.; Mead, J. I.; McDonald, H. G.; MacPhee, R.D.E.; Billet, G.; Hautier, L.; Poinar, H. N. (2019). "Ancient Mitogenomes Reveal the Evolutionary History and Biogeography of Sloths". Current Biology. 29 (12): 2031–2042.e6. Bibcode:2019CBio...29E2031D. doi:10.1016/j.cub.2019.05.043. hdl:11336/136908. PMID 31178321.

sciencedaily.com

"Sticking Their Necks out for Evolution: Why Sloths and Manatees Have Unusually Long (or Short) Necks". May 6th 2011. Science Daily. Retrieved 25 July 2013.

sciencedirect.com

Troll, S.; Gottschalk, J.; Seeburger, J.; Ziemssen, E.; Häfner, M.; Thielebein, J.; Einspanier, A. (1 August 2013). "Characterization of the ovarian cycle in the two-toed sloths (Choloepus didactylus): An innovative, reliable, and noninvasive method using fecal hormone analyses". Theriogenology. 80 (3): 275–283. doi:10.1016/j.theriogenology.2013.04.007. ISSN 0093-691X. PMID 23743067.

semanticscholar.org

api.semanticscholar.org

Presslee, S.; Slater, G. J.; Pujos, F.; Forasiepi, A. M.; Fischer, R.; Molloy, K.; et al. (2019). "Palaeoproteomics resolves sloth relationships" (PDF). Nature Ecology & Evolution. 3 (7): 1121–1130. Bibcode:2019NatEE...3.1121P. doi:10.1038/s41559-019-0909-z. PMID 31171860. S2CID 174813630. Archived (PDF) from the original on 12 September 2020. Retrieved 18 September 2020.
Muizon, C. de; McDonald, H. G. (May 1995). "An aquatic sloth from the Pliocene of Peru". Nature. 375 (6528): 224–227. Bibcode:1995Natur.375..224M. doi:10.1038/375224a0. ISSN 1476-4687. S2CID 4369283.
Granatosky, Michael C.; Karantanis, Nikolaos E.; Rychlik, Leszek; Youlatos, Dionisios (December 2018). "A suspensory way of life: Integrating locomotion, postures, limb movements, and forces in two-toed sloths Choloepus didactylus (Megalonychidae, Folivora, Pilosa): GRANATOSKY et al". Journal of Experimental Zoology Part A: Ecological and Integrative Physiology. 329 (10): 570–588. doi:10.1002/jez.2221. PMID 30129260. S2CID 52050040.
Gómez-Hoyos, Diego A.; González-Maya, José F.; Pacheco, Jesús; Seisdedos-Vergara, Seisdedos-Vergara; Barrio-Amorós, César L.; Ceballos, Gerardo (December 2017). "Mineral-Lick Use By Choloepus hoffmanni (Pilosa: Megalonychidae) At Las Cruces Biological Station, Coto Brus, Costa Rica". The Southwestern Naturalist. 62 (4): 278–280. doi:10.1894/0038-4909-62.4.278. ISSN 0038-4909. S2CID 92499258.
Naples, Virginia L. (January 1985). "Form and function of the masticatory musculature in the tree sloths, Bradypus and Choloepus". Journal of Morphology. 183 (1): 25–50. doi:10.1002/jmor.1051830104. ISSN 0362-2525. PMID 3973924. S2CID 36168956.

sloth-world.org

"Sloth-World.org". Archived from the original on 2 February 2009.

uh.edu

wwworm.biology.uh.edu

Frietson Galis (1999). "Why do almost all mammals have seven cervical vertebrae? Developmental constraints, Hox genes and Cancer" (PDF). Journal of Experimental Zoology. 285 (1): 19–26. Bibcode:1999JEZ...285...19G. doi:10.1002/(SICI)1097-010X(19990415)285:1<19::AID-JEZ3>3.0.CO;2-Z. PMID 10327647. Archived from the original (PDF) on 10 November 2004.

umich.edu

animaldiversity.ummz.umich.edu

Myers, Phil (2001). "Family Megalonychidae: two-toed sloths". Animal Diversity Web. University of Michigan. Retrieved 14 September 2009.

web.archive.org

Presslee, S.; Slater, G. J.; Pujos, F.; Forasiepi, A. M.; Fischer, R.; Molloy, K.; et al. (2019). "Palaeoproteomics resolves sloth relationships" (PDF). Nature Ecology & Evolution. 3 (7): 1121–1130. Bibcode:2019NatEE...3.1121P. doi:10.1038/s41559-019-0909-z. PMID 31171860. S2CID 174813630. Archived (PDF) from the original on 12 September 2020. Retrieved 18 September 2020.
"Sloth-World.org". Archived from the original on 2 February 2009.
Myers, Phil (2001). "Family Megalonychidae: two-toed sloths". Animal Diversity Web. University of Michigan. Archived from the original on 11 March 2017. Retrieved 11 March 2017.
Sloth Standards. nationalzoo.si.edu (May 27, 2005)
Frietson Galis (1999). "Why do almost all mammals have seven cervical vertebrae? Developmental constraints, Hox genes and Cancer" (PDF). Journal of Experimental Zoology. 285 (1): 19–26. Bibcode:1999JEZ...285...19G. doi:10.1002/(SICI)1097-010X(19990415)285:1<19::AID-JEZ3>3.0.CO;2-Z. PMID 10327647. Archived from the original (PDF) on 10 November 2004.

whiterose.ac.uk

eprints.whiterose.ac.uk

Presslee, S.; Slater, G. J.; Pujos, F.; Forasiepi, A. M.; Fischer, R.; Molloy, K.; et al. (2019). "Palaeoproteomics resolves sloth relationships" (PDF). Nature Ecology & Evolution. 3 (7): 1121–1130. Bibcode:2019NatEE...3.1121P. doi:10.1038/s41559-019-0909-z. PMID 31171860. S2CID 174813630. Archived (PDF) from the original on 12 September 2020. Retrieved 18 September 2020.

wiley.com

onlinelibrary.wiley.com

Granatosky, Michael C.; Karantanis, Nikolaos E.; Rychlik, Leszek; Youlatos, Dionisios (December 2018). "A suspensory way of life: Integrating locomotion, postures, limb movements, and forces in two-toed sloths Choloepus didactylus (Megalonychidae, Folivora, Pilosa): GRANATOSKY et al". Journal of Experimental Zoology Part A: Ecological and Integrative Physiology. 329 (10): 570–588. doi:10.1002/jez.2221. PMID 30129260. S2CID 52050040.
Naples, Virginia L. (January 1985). "Form and function of the masticatory musculature in the tree sloths, Bradypus and Choloepus". Journal of Morphology. 183 (1): 25–50. doi:10.1002/jmor.1051830104. ISSN 0362-2525. PMID 3973924. S2CID 36168956.

worldcat.org

Gardner, A. L. (2005). "Genus Choloepus". In Wilson, D. E.; Reeder, D. M. (eds.). Mammal Species of the World: A Taxonomic and Geographic Reference (3rd ed.). Johns Hopkins University Press. pp. 101–102. ISBN 978-0-8018-8221-0. OCLC 62265494.
Muizon, C. de; McDonald, H. G. (May 1995). "An aquatic sloth from the Pliocene of Peru". Nature. 375 (6528): 224–227. Bibcode:1995Natur.375..224M. doi:10.1038/375224a0. ISSN 1476-4687. S2CID 4369283.
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