January 2025 in “Animal Science Journal” Golden takin's hair structure is adapted to maintain body temperature in harsh winters.
January 2012 in “International Journal of Trichology” Two siblings have a rare genetic condition causing curly, coarse hair.
40 citations
,
February 1990 in “Journal of The American Academy of Dermatology” A 17-year-old developed woolly hair nevus in adolescence, which is unusual, and over time the hair darkened and straightened slightly, but microscopic changes persisted.
April 2017 in “Journal of Dermatological Science” Asymmetric hair follicle differentiation causes the unique shape of kinky hair.
95 citations
,
October 2007 in “International Journal of Dermatology” A new method accurately classifies hair types, showing global hair diversity.
4 citations
,
January 2015 in “Sen'i Gakkaishi” Hair and wool strength is affected by the number and type of bonds in their protein structures, with hair having more protein aggregates than wool.
May 2026 in “Research Square” The polyG fragment in Hoxc13 protein helps evolve mammalian skin and hair by enhancing gene interactions.
15 citations
,
January 1988 Hair follicles have unique proteins that vary by species and are influenced by nutrition.
10 citations
,
January 1925 in “Archives of Dermatology” Trichostasis spinulosa is a rare skin condition with hair-filled plugs in hair follicles.
7 citations
,
July 2025 in “The Journal of Physiology” C-tactile nerves are sensitive to hair movement.
December 2011 in “URMIA MEDICAL JOURNAL” Glycoconjugate sugars are important for hair follicle development.
9 citations
,
January 2003 The evolution of mammal body hair remains a mystery.
January 1957 in “Nihon Chikusan Gakkaiho” Rabbit hair color is influenced by the shape and distribution of pigment granules.
5 citations
,
March 2001 in “Journal of biomechanics” Growing hairs are easier to pull out than resting hairs due to different anchorage strengths.
15 citations
,
October 2004 in “Colloids and surfaces. B, Biointerfaces” Holes in mature hair are likely caused by the removal of substances during hair care.
2 citations
,
August 2019 in “Electronics and Communications in Japan” The device mimics human hair follicles and detects tiny forces and moments with high sensitivity.
29 citations
,
March 2012 in “Journal of Experimental Biology” Tarantula feet likely have chemoreceptors, not silk-producing parts.
48 citations
,
January 2002 in “Journal of Structural Biology” Trichocyte filaments have a low-density core and may include proteins for hair structure.
January 2008 in “Medical Entomology and Zoology”
10 citations
,
November 2016 in “International Journal of Cosmetic Science” A tough membrane between the outer and inner layers of human hair protects it from damage.
The model explains how mammal ear hair cells respond to sound and adapt.
3 citations
,
January 2022 in “Medical Mycology Journal” Malassezia fungi in healthy noses can form a "spaghetti-and-meatballs" structure.
19 citations
,
November 2014 in “Journal of Comparative Physiology A” Spider joint hair sensilla are adapted to sense movement during walking.
18 citations
,
January 2018 in “Advances in experimental medicine and biology” Hair keratins evolved from ancient proteins, diversifying through gene changes, crucial for forming claws and later hair in mammals.
10 citations
,
November 2008 in “Veterinary Dermatology” The mouse hairy ears mutation causes longer ear hair due to changes in gene expression.
86 citations
,
May 2002 in “Journal of Investigative Dermatology” A new keratin, hK6irs1, is found in all layers of the hair follicle's inner root sheath.
17 citations
,
February 1987 in “Journal of the American Academy of Dermatology” The hair cuticle acts as a barrier against fungal infection, which occurs only deep within the hair follicle.
2 citations
,
September 2002 in “Dermatologic Surgery” Each group of hair follicles on the scalp shares one muscle that helps control hair movement.
35 citations
,
September 2003 in “Archives of dermatology” Tiger tail bands in hair are caused by wavy hair fibers with melanin, unlike straight fibers in normal hair.
8 citations
,
October 2024 in “Developmental Cell”