July 2022 in “Indian Journal of Otology” A rare ear-area hair cyst was successfully removed from a 10-year-old boy.
10 citations
,
November 2008 in “Veterinary Dermatology” The mouse hairy ears mutation causes longer ear hair due to changes in gene expression.
28 citations
,
May 2015 in “Molecular Neurobiology” LSD1 is crucial for regenerating hair cells in zebrafish.
1 citations
,
December 2021 in “Kathmandu University medical journal” Adult earlobe can have a benign cyst that is usually removed by surgery.
January 2025 in “Nature Communications” Large-scale reconstructions enhance understanding of vibrissal sensory mapping in the brain.
4 citations
,
January 2011 in “Dermatology” A patient grew extra hair on their ears after treatment for testicular cancer, possibly due to hormonal changes or genetics.
19 citations
,
November 2014 in “Journal of Comparative Physiology A” Spider joint hair sensilla are adapted to sense movement during walking.
20 citations
,
December 2010 in “Journal of Morphology” Lizard claws have hair-like keratins similar to those in mammals.
29 citations
,
January 2021 in “G3 Genes Genomes Genetics” A 195 bp duplication in the HOXC10 gene causes crests in domestic chickens.
14 citations
,
June 2005 in “PubMed” A rare ear cyst contained hair fragments.
26 citations
,
August 2007 in “Annals of Anatomy - Anatomischer Anzeiger” Feathers become harder as they develop due to a change in keratin type.
January 2024 in “Biochemical and Biophysical Research Communications” Lack of zinc can cause hearing loss by damaging important parts of inner ear cells in mice.
46 citations
,
January 1991 in “Tissue and Cell” The male silkmoth's antenna develops olfactory structures over 21 days, with full hair formation by day 15.
245 citations
,
January 1998 in “Genes & Development” Hoxc13 gene is essential for hair, nail, and papilla development.
8 citations
,
May 1941 in “Science” Mouse embryos can develop in chick embryos, but they grow smaller with some organ issues.
1 citations
,
October 2015 in “OakTrust (Texas A&M University Libraries)” Harp seals have different innervation patterns in their whiskers, with lateral whiskers having more axons than medial ones.
45 citations
,
April 2009 in “Journal of anatomy” Cat claws stay sharp by shedding their outer layer through microcracks formed during activities.
128 citations
,
March 1989 in “Experimental Cell Research” Hoxc13 is important for hair and tongue development by controlling hair keratin genes.
17 citations
,
September 2010 in “Pediatric dermatology” A 15-year-old with KID syndrome developed a rare skin condition called PEHFN.
2 citations
,
August 2020 in “Scientific reports” Genes related to keratin, skin cell differentiation, and immune functions are key in hedgehog skin and spine development.
January 2026 in “Indian Journal of Ophthalmology - Case Reports” Trichilemmal cysts can appear on children's eyelids and may be mistaken for other conditions.
8 citations
,
May 2005 in “The American journal of dermatopathology/American journal of dermatopathology” The hair defect is due to abnormal inner root sheath keratinization.
15 citations
,
July 2004 in “Journal of morphology” Monotreme hair structure and protein distribution are similar to other mammals, but their inner root sheath cornifies differently, suggesting a unique evolution from reptile skin.
2 citations
,
June 2001 in “Medical Electron Microscopy” Trichilemmal cysts may form from hair follicle outer root sheath growth.
18 citations
,
May 2023 in “Science Advances” Activating the sonic hedgehog pathway in chicken embryos can permanently change scales to feathers.
March 2023 in “Pediatrics & neonatology” A baby girl had two brain-related growths removed and is developing normally.
4 citations
,
August 2023 in “Biomedicine & Pharmacotherapy” Ivacaftor can protect against noise-induced hearing loss by reducing oxidative stress.
2 citations
,
January 2025 in “Development” BMP5 is essential for ear cartilage cell growth in rodents.
72 citations
,
December 2018 in “Journal of Experimental Zoology Part B Molecular and Developmental Evolution” Corneous beta-proteins evolved uniquely in reptiles and birds, forming scales, claws, beaks, and feathers.
June 2018 in “Dermatologic Surgery”