April 2003 in “Experimental Dermatology” The workshop highlighted the genetic links and psychological impacts of hair loss and skin disorders.
4 citations
,
June 2023 in “Journal of developmental biology” The skin systems of jawed vertebrates evolved diverse appendages like hair and scales from a common structure over 420 million years ago.
8 citations
,
April 2014 in “Experimental Dermatology” Mammals and birds have evolved poisonous skin and feathers for defense.
May 2026 in “Research Square” The polyG fragment in Hoxc13 protein helps evolve mammalian skin and hair by enhancing gene interactions.
36 citations
,
November 2019 in “Molecular biology and evolution” Cysteine-rich keratins evolved independently in mammals, reptiles, and birds for hard skin structures like hair, claws, and feathers.
17 citations
,
June 2012 in “Journal of experimental zoology. Part B, Molecular and developmental evolution” Hair in mammals likely evolved from glandular structures, not scales.
86 citations
,
April 2009 in “Journal of anatomy” Hard skin features like scales, feathers, and hair evolved through specific protein changes in different animal groups.
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.
47 citations
,
May 2012 in “Wiley Interdisciplinary Reviews-Developmental Biology” The conclusion is that understanding how feathers and hairs pattern can help in developing hair regeneration treatments.
3 citations
,
September 2023 in “Genes” Dkk genes evolved faster in birds and reptiles, affecting hair development functions.
May 2025 in “Journal of Developmental Biology” Jawless vertebrates have teeth proteins similar to those in mammalian hair and nails.
25 citations
,
November 2020 in “Proceedings of the National Academy of Sciences” HoxC genes are crucial for normal hair and nail development.
Cellular flows and tissue mechanics guide feather follicle formation in birds.
19 citations
,
April 2015 in “Developmental Dynamics” The conclusion is that skin and hair patterns are formed by a mix of cell activities, molecular signals, and environmental factors.
10 citations
,
April 2017 in “PLoS ONE” White rhinoceroses have a unique skin structure with thick epidermis and no hair or oil glands.
June 2020 in “bioRxiv (Cold Spring Harbor Laboratory)” The HoxC gene cluster and its enhancers are essential for developing hair and nails in mammals.
70 citations
,
December 2004 in “Differentiation” The study identified and characterized new keratin genes linked to hair follicles and epithelial tissues.
2 citations
,
April 2019 in “Experimental Dermatology” The article concludes that studying how skin forms is key to understanding skin diseases and improving regenerative medicine.
22 citations
,
December 2016 in “PloS one” A specific protein in chicken embryos links early skin layers to feather development.
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.
1 citations
,
October 2025 in “Scientific Reports” Mandarin duck sail feathers change with seasons due to hormones and genetic regulation.
112 citations
,
January 2004 in “The International journal of developmental biology” Feather patterns form through genetic and epigenetic controls, with cells self-organizing into periodic patterns.
10 citations
,
June 2022 in “Development” Gene regulation evolved differently in mouse and chicken skin, but remained stable in their trunks.
68 citations
,
April 2014 in “Journal of Investigative Dermatology” Trichohyalin-like proteins are essential for the development of skin structures like hair, nails, and feathers.
1 citations
,
October 2017 in “Frontiers in Physiology” Hair follicle keratin may have been used in tooth enamel evolution.
115 citations
,
November 2008 in “Proceedings of the National Academy of Sciences” Reptiles have genes similar to hair proteins, suggesting hair's genetic origins predate mammals.
85 citations
,
October 2006 in “Current opinion in cell biology” Feather growth and regeneration involve complex patterns, stem cells, and evolutionary insights.
20 citations
,
September 2004 in “Journal of Anatomy” The inner root sheath evolved to help hair grow safely through the skin in mammals.
45 citations
,
April 2009 in “Journal of anatomy” Cat claws stay sharp by shedding their outer layer through microcracks formed during activities.
1 citations
,
December 2022 in “bioRxiv (Cold Spring Harbor Laboratory)” Pangolins have lost some skin-related genes, but kept others, showing complex skin evolution.