October 1988 in “Pediatric research” Certain maturity signs appear before and after the first release of sperm in boys.
Accurate prediction of eye, hair, and skin color in Latin American populations requires region-specific models and ethical guidelines.
6 citations
,
September 1957 in “Poultry Science” Adding copper helps turkey poults grow better when molybdenum is present.
56 citations
,
September 2010 in “Veterinary pathology” Certain mouse strains develop a skin condition similar to a human hair loss disease due to genetic defects.
11 citations
,
November 2006 in “Journal of Veterinary Diagnostic Investigation” An alpaca acted like a male and couldn't have babies because of a benign tumor in its ovary that caused high testosterone levels.
March 2026 in “JAAD reviews.”
May 2018 in “European Journal of Dermatology” Adjusting the medication tacrolimus resolved a boy's red nail beds after a stem cell transplant.
August 2018 in “Journal of The American Academy of Dermatology” The study concluded that a new method can effectively assess scalp sun damage in balding men, which increases with age and sun exposure.
April 1981 in “Pediatric research” Copper treatments increase copper in all tissues, but brindled female mice accumulate much more copper in their kidneys without clinical effects, unlike brindled male mice where brain copper deficiency is clinically significant.
November 2023 in “Journal of the American Academy of Dermatology” Skin of color can spontaneously repigment after a phenol-croton oil chemical peel.
1 citations
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December 2012 in “Clinical and Experimental Dermatology” A rare calcium deposit condition was found on a man's scalp.
30 citations
,
February 1996 in “Journal of Investigative Dermatology”
27 citations
,
April 2019 in “Journal of The American Academy of Dermatology” Where melanoma is on the body affects survival chances; melanomas on the back of the head are worse, while those on thighs and arms are less severe, and more sun exposure might improve survival.
6 citations
,
January 2005 Selenosis in calves causes health issues and changes in blood parameters.
55 citations
,
August 2013 in “PloS one” Genetic differences between young and old Tan sheep explain why their fleece changes from curly to straight as they age.
2 citations
,
October 1985 in “Pediatrics in review” Scalp diseases change with age and can be hard to tell apart from hair disorders.
8 citations
,
May 1982 in “Journal of Endocrinology/Journal of endocrinology” Rat skin takes up and processes testosterone differently than other organs, with testosterone being more important for the skin than its metabolite 5α-DHT.
"Bider" markings in Dun Mongolian horses are caused by a complex network of genes and pathways.
3 citations
,
December 2020 The interdigital gland in crossbred sheep is similar to skin and has specialized structures for secretion.
1 citations
,
January 2012 in “Journal of Toxicologic Pathology” A rat had a cyst similar to a hair follicle structure.
4 citations
,
October 2001 in “Mycoses” A young cat had a rare fungal infection caused by Microsporum gypseum.
September 2025 in “Media Kedokteran Hewan” 90% of African pygmy hedgehogs in the study had fungal infections.
2 citations
,
August 2018 in “Advances in Animal and Veterinary Sciences” Camels in South Iraq were cured of skin infections with antibiotics and supplements.
3 citations
,
October 2020 in “Journal of Investigative Dermatology” Removing β-catenin in certain stem cells causes hair whitening and pigmentation issues.
101 citations
,
April 2013 in “Science” Feather pigment patterns form through melanocyte arrangement and simple regulatory mechanisms.
3 citations
,
July 2012 in “Sokoto Journal of Veterinary Sciences” As sheep age, their hair fibers and follicles grow larger and more organized, with no significant differences between males and females.
23 citations
,
August 2017 in “Genome” Gene expression affects fur development in rex rabbits.
August 2012 in “Open Repository and Bibliography (University of Liège)” A castrated dog developed hair loss and prostate issues from long-term exposure to estrogen cream.
March 2022 in “Journal of The American Academy of Dermatology” The study found different balding patterns in men of color.
5 citations
,
November 2011 in “Journal of Cutaneous Medicine and Surgery” Hairless dogs can be used to study human hypertrophic scars.