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Hair feels different when touched and rubs together in various ways.
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December 1966 in “Textile Research Journal” Animal hair fibers like wool and mohair are strong when dry, but vicuna fibers are very brittle.
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January 2014 in “Institutional Repositories DataBase (IRDB)” Fibroblast spheres can form stem cells, but marker distribution needs more study.
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July 2007 in “Journal of comparative neurology” Manatee whiskers are specially adapted for touch in water.
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February 2021 in “Proteins” Researchers found that the most reachable bonds in wool fibers are near the ends of certain proteins, which help stabilize the fiber's structure.
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May 2021 in “Frontiers in Cell and Developmental Biology” Ng2+ perivascular cells in mouse skin come from specific fibroblast types and help in tissue repair.
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January 2003 Merkel cells likely attract sensory nerve fibers.
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November 1991 in “Brain Research” Aδ-LTMRs have complex synapses with glycine, while Aβ-LTMRs have simpler ones.
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Yak hair stretches mainly due to macromolecules slipping past each other.
Curly wool has more orthocortex than straight wool.