January 2025 in “Figshare” Stress can cause sudden hair whitening in children, but it may reverse on its own.
July 2023 in “International Journal of Trichology” The man's hair turned white suddenly but returned to normal on its own in 6 months.
January 2022 in “Mammalian Genome” The wavy coat in NCT mice is caused by multiple genes, including a mutation in the Prss53 gene.
October 2025 in “International Journal of Advanced Multidisciplinary Research and Studies” Hairless dogs have unique skin adaptations to regulate temperature and protect against environmental factors.
March 2026 in “Journal of genetics and genomics/Journal of Genetics and Genomics” Minoxidil can cause hair to turn yellow.
January 2008 in “Pratique médicale & chirurgicale de l'animal de compagnie” Alopecia X in dogs is a cosmetic issue, not a hormonal disorder, and harmful treatments should be avoided.
May 2023 in “Brazilian Journal of Animal and Environmental Research” Photobiomodulation effectively treats hair loss in dogs with black hair follicular dysplasia.
7 citations
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March 2023 in “Frontiers in Veterinary Science” Camelina oil can improve dog coat quality like flaxseed and canola oils.
15 citations
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June 1993 in “Archives of Dermatology” A 22-year-old's gray hair partially turned back to its original color without known causes.
October 2020 in “Tierärztliche Praxis. Ausgabe Grosstiere, Nutztiere” Cows moving from tie-stalls to free-stalls had fewer leg injuries but more stress and heel horn erosions.
70 citations
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March 1997 in “Journal of Investigative Dermatology”
30 citations
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March 2017 in “PLoS ONE” Sulfur slightly improved diet estimates for grizzly bears, but hair growth timing varied, affecting results.
22 citations
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April 1967 in “Australian Journal of Zoology” Southern elephant seals develop hair follicles and skin layers before birth, with moulting starting a week after birth and finishing in three weeks.
November 2023 in “Animals” Feeding goats more during the non-growing period increases cashmere yield and length.
9 citations
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July 2021 in “Frontiers in genetics” Melatonin makes cashmere grow earlier and more by increasing certain gene activity in goats.
March 2026 in “Scientific Data” Chromatin state changes in hair follicle stem cells can improve cashmere growth.
2 citations
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September 2023 Gaining 5-10 kg during the non-growing period boosts cashmere yield and length in goats.
25 citations
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October 2018 in “PloS one” Key genes regulate hair follicle phase changes in Inner Mongolia cashmere goats.
November 2025 in “animal” Certain genes in European Merino sheep help them adapt to different climates.
April 2018 in “Blackwell's Five‐Minute Veterinary Consult Clinical Companion” The document concludes that skin and hair changes in small animals are often due to hormonal imbalances and recommends regular baths and antibiotics for associated infections.
January 2002 in “HAL (Le Centre pour la Communication Scientifique Directe)” Melatonin affects fur growth timing in chinchillas.
April 2026 in “BMC Genomics” Hair type differences in cashmere goats are linked to keratin and cytoskeletal organization.
January 2014 in “Journal of Pigmentary Disorders” Women's hair gets thinner and grayer as they age, with treatments available for hair loss and graying.
1 citations
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February 1991 in “Journal of Biological Chemistry”
March 2024 in “Brazilian Journal of Veterinary Pathology” The dog likely has a canine alopecia X-like disorder.
16 citations
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February 2008 in “PubMed” Vitamin B12 deficiency can cause skin darkening and white hair, but it's reversible.
1 citations
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January 2025 in “Poultry Science” Pekin duck skin quality improves with age, peaking at 5-6 weeks.
Tan sheep's unique fur traits are determined during the embryonic stage by specific genes.