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Southern maned sloth

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Southern maned sloth
Scientific classification Edit this classification
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Infraclass: Placentalia
Order: Pilosa
Suborder: Folivora
Family: Bradypodidae
Genus: Bradypus
Species:
B. crinitus
Binomial name
Bradypus crinitus
Southern maned sloth range

The southern maned sloth (Bradypus crinitus) is a species of three-toed sloth.

Description

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The southern maned sloths have flatter skulls, rounder jaws, and wider cheekbones than the northern maned sloths.[2] The species has a head that looks like a coconut.

Distribution

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The sloth is endemic to Brazil's Atlantic Forest, a highly biodiverse region. Southern maned sloths were found in Rio de Janeiro and Espírito Santo.[3]

Discovery

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The species was discovered by John Edward Gray in 1850, but his assertions were later dismissed, with taxonomists agreeing that the specimen, that Gray described was a B. torquatus, but the new study proves that B. critinus does indeed exist.[2] The B. crinitus separated from B. torquatus in the north by more than 4 million years of evolution.[4] B.torquatus and B. crinitus are allopatrically distributed that diverged during the Early Pliocene (period of global cooling).[5]

Name

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The sloth received Gray's old name, Bradypus crinitus.[4] The name crinitus means 'hairy', referring to its coconut-like head.[6]

Conservation status

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In March 2025, the IUCN Red List evaluated the southern maned sloth as Endangered, noting its decreasing population.[1]

References

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  1. ^ a b Santos, P.; Chiarello, A.; Miranda, F.; Moraes-Barros, N. (2025). "Bradypus crinitus". IUCN Red List of Threatened Species. 2025 e.T237133936A237141184. doi:10.2305/IUCN.UK.2025-1.RLTS.T237133936A237141184.en.
  2. ^ a b "New Species Of Coconut Headed Sloth Identified In Brazilian Jungle". IFLScience. 29 September 2022. Retrieved 2023-02-19.
  3. ^ "New Animal Species Discovered | Conservation & Wildlife". 2023-01-13. Retrieved 2023-02-19.
  4. ^ a b "Newly recognised species of sloth has a head like a coconut". New Scientist. Retrieved 2023-02-19.
  5. ^ Miranda, Flavia R.; Garbino, Guilherme S. T.; Machado, Fabio A.; Perini, Fernando A.; Santos, Fabricio R.; Casali, Daniel M. (19 September 2022). "Taxonomic revision of maned sloths, subgenus Bradypus (Scaeopus), Pilosa, Bradypodidae, with revalidation of Bradypus crinitus Gray, 1850". Journal of Mammalogy. 104 (1): 86–103. doi:10.1093/jmammal/gyac059.
  6. ^ "Top 15 species discoveries from 2022 (Photos)". Mongabay Environmental News. 2022-12-29. Retrieved 2023-02-19.
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