Tan sheep's unique fur traits are determined during the embryonic stage by specific genes.
5 citations
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February 1981 in “Experientia” A new gene causes hairlessness and skin cysts in rats.
1 citations
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January 2008 in “Proceedings of the 9th World Rabbit Congress, Verona, Italy, 10-13 June 2008” Furless male rabbits grew slightly faster and heavier than furred ones, but testosterone levels were not the cause.
4 citations
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April 2022 in “Animals” Outdoor living and omega-3 supplements improve rabbit fur quality.
133 citations
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August 1969 in “Science” Melatonin causes weasels to grow white fur and become reproductively inactive.
8 citations
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September 1981 in “Zentralblatt für Veterinärmedizin Reihe A” Biotin deficiency in pigs causes hair loss, skin issues, and weak claws.
73 citations
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December 2015 in “Nature Genetics” Mutations in TBX3 cause horses to have more even hair color instead of Dun camouflage.
January 2008 in “Medical Entomology and Zoology” 2 citations
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January 2025 in “Veterinary Dermatology” Male Pomeranians with woolly coats are more likely to develop alopecia X.
December 2011 in “Korean journal of veterinary research” A Miniature Pinscher dog with hair loss and scaling was diagnosed with pattern alopecia and improved with melatonin treatment.
10 citations
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March 2019 in “Human Genetics” A genetic mutation in the SGK3 gene causes hairlessness in Scottish Deerhounds and may relate to human hair loss.
11 citations
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June 2012 in “Acta histochemica” Mice with a Gsdma3 gene mutation have thicker skin and longer hair follicle openings due to increased β-catenin levels.
January 1962 in “Archives of Dermatology” A 5-year-old girl has lipoid proteinosis, causing voice issues, hair thinning, skin lesions, and tongue movement problems.
December 2024 in “PLoS ONE” Alopecia in gray bats is most common and severe during lactation, likely due to stress and nutrition.
19 citations
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November 1993 in “Mammalian Genome” A gene mutation in mice causes permanent hair loss and skin issues.
January 2026 in “Animal Advances” Genes linked to coat color and fiber length in Chinese goats were identified.
March 2024 in “Brazilian Journal of Veterinary Pathology” The dog likely has a canine alopecia X-like disorder.
12 citations
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October 2014 in “Journal of Applied Animal Research” Bakerwali goat skin thickens with age, especially on the neck, and shows strong lipid reactions in the keratin layer.
6 citations
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November 2020 in “bioRxiv (Cold Spring Harbor Laboratory)” Gene expression, especially Dkk4, is key to cat color patterns.
4 citations
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January 2012 in “Springer eBooks” The document concludes that signs of male and female pattern baldness include uneven hair thickness, yellow spots, skin discoloration around hair follicles, more thin and soft hairs, and many hair follicles with just one hair.
June 2022 in “Authorea (Authorea)” A 59-year-old woman was diagnosed with a rare hair loss condition called lipedematous alopecia.
2 citations
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January 2010 Tianzhu white yak hair varies in structure and density between fuzz and coarse hair.
25 citations
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August 2017 in “Frontiers in Zoology” Marine mammals lost many α-keratin genes, aiding their adaptation to aquatic life by becoming hairless.
27 citations
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July 1997 in “PubMed” The harlequin ichthyosis mouse mutation causes thick skin and early death, resembling a human skin disorder.
January 2024 in “Brazilian journal of veterinary pathology” The dog likely has a condition similar to Canine alopecia X.
June 2011 in “European Journal of Pediatric Dermatology” An 11-year-old girl with hair thinning was diagnosed with monilethrix and early androgenetic alopecia.
11 citations
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February 1989 in “Journal of veterinary medicine. Series A” Crossbreeding certain European cattle breeds may cause hair and physical issues in cattle.
4 citations
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September 2016 in “World Rabbit Science” High wool density in Rex rabbits is linked to specific gene activity affecting hair follicle development.
93 citations
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May 1990 in “The EMBO Journal” Mice with extra sheep genes had hair that fell out and regrew in cycles.
24 citations
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May 2000 in “Journal of the American Academy of Dermatology” Pseudopelade can affect both the scalp and beard, causing hair loss.