51 citations
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January 2007 in “Animal Genetics” The gene for slick hair in Senepol cattle is located on chromosome 20 and may involve the SRD5A2 gene.
55 citations
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December 2021 in “BMC Veterinary Research” Certain genes in Iranian sheep are linked to wool production and heat adaptation.
109 citations
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July 1993 in “The journal of investigative dermatology/Journal of investigative dermatology” Hair color production is closely linked to the active growth phase of hair in mice and may also influence hair growth itself.
2 citations
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March 2021 in “bioRxiv (Cold Spring Harbor Laboratory)” Hairless mammals have genetic changes in both their protein-coding and regulatory sequences related to hair.
Gray hair affects hair's movement and appearance, making it less bouncy and more wavy.
July 2024 in “Dermatology and Therapy” Darker hair colors may increase the risk of alopecia areata, while lighter hair colors may decrease it.
June 2025 in “Albus Scientia” MC1R gene variations affect skin, hair color, UV sensitivity, and melanoma risk.
6 citations
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January 2013 in “Journal of Veterinary Medical Science” The dog's skin and anemia issues returned after stopping treatment for Babesia gibsoni.
9 citations
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January 2008 in “Acta histochemica et cytochemica” COX-2 levels change during the hair cycle and affect skin and hair growth.
9 citations
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November 2015 in “JAMA dermatology” A 91-year-old woman's hair turned black in one spot, with skin changes underneath.
8 citations
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September 1975 in “Journal of Animal Science” Moose hair can track past mineral levels, except zinc.
11 citations
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April 2013 in “Homo” Darker skin in 10-year-old girls may be an early sign of puberty.
June 2026 in “Journal of Advances in Biology & Biotechnology” Canine demodicosis causes skin issues, anemia, and mineral deficiencies in dogs.
20 citations
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October 2018 in “American Journal of Clinical Dermatology” Some drugs can cause skin and hair color changes, often reversible when the drug is stopped.
September 2023 in “Cells tissues organs” Mice skin matures by day 200, leading to aging signs like curved hair follicles and white hairs due to changes in skin stem cells.
1 citations
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January 2025 in “International Journal of Cosmetic Science” Age-related hair curvature increases due to internal structural changes from grooming.
Wildebeest stress and hormone levels are influenced by food availability, human presence, and reproductive cycles.
15 citations
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January 1989 in “European Journal of Cancer and Clinical Oncology”
20 citations
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July 2006 in “Veterinary dermatology” Melatonin helped some Pomeranian dogs regrow hair, but it wasn't linked to estrogen receptors.
Hair can naturally regain color, and stress might influence greying and its reversal.
2 citations
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March 1977 in “Journal of animal science/Journal of animal science ... and ASAS reference compendium” Defective mink guard hairs have split tips and missing cuticle cells, causing a metallic sheen.
9 citations
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June 1959 in “Archives of dermatology” Hair can darken after inflammation and then return to its original color.
7 citations
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December 1956 in “Science” 1 citations
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December 1956 in “Science”
21 citations
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September 2015 in “Journal of the European Academy of Dermatology and Venereology” Yellow and orange colors are important for diagnosing certain skin conditions.
Rex rabbits should not be slaughtered before 120 days for the best fur quality.
8 citations
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August 1971 in “Canadian Journal of Zoology” Chinchillas have specific blood and protein levels, with variations possibly linked to pregnancy or hair growth.
6 citations
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August 2023 in “BMC genomics” The study found that genetic differences related to hair growth and other traits help cashmere goats adapt to high-altitude environments.
February 2005 in “CRC Press eBooks” Hair color is due to active pigment cells in hair during growth.
12 citations
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February 2019 in “Skin research and technology” White hair has less lipid content and absorbs water differently than brown hair.