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Animals that change color with the seasons mainly do so in response to daylight changes, but climate change is causing camouflage problems that may require evolutionary changes.

Researchers found genes that control hair color and growth change before the visible coat color changes in snowshoe hares.

Genes related to pigmentation, body rhythms, and behavior change during hares' seasonal coat color transition, with a common genetic mechanism in two hare species.

Environmental factors like temperature and nutrition affect hair growth, with humans showing seasonal hair growth differences.

The article concludes that better understanding gene regulation related to seasonal changes can offer insights into the mechanisms of seasonal timing in mammals.

Red deer only have androgen receptors in neck hair cells for mane growth during breeding season.

Hair growth is influenced by hormones and goes through different phases; androgens can both promote and inhibit hair growth depending on the body area.

Androgens can both stimulate and cause hair loss, and understanding their effects is key to treating hair disorders.

Androgens can cause hair growth in some areas and hair loss on the scalp.

Prolactin contributes to hair loss by promoting hair follicle shrinkage and cell death.

Human skin's melanocytes respond to light by changing shape, producing pigments and hormones, which may affect sleep patterns.

Androgens can both increase and decrease hair growth in different parts of the body.

Hair diversity is influenced by complex genetics and environmental factors, requiring more research for practical solutions.

The document concludes that understanding hair and feather regeneration can help develop new regenerative medicine strategies.

Melatonin helps regulate hair growth and protects the hair follicle from stress.

Adult male raccoon dogs shed their winter fur in spring and grow new fur for winter in autumn.

Melatonin treatment speeds up fur maturation and changes the hair growth cycle in young chinchillas.

Mouflon rams mature gradually with changes in body, horns, and hormones linked to age and seasons, reaching full sexual maturity well after puberty.

Researchers found a genetic link for hereditary hair loss but need more analysis to identify the exact gene.

Vitamin A deficiency changes cattle hair structure, while pregnancy may improve it, suggesting hair can indicate cattle health.

Adrenal glands delay the start of winter fur growth in mink.

SCF and c-Kit decrease in AGA hair follicles, possibly affecting hair pigmentation and growth.

Prolactin affects hair growth and skin conditions, and could be a target for new skin disease treatments.

Prolactin affects when mice shed and grow hair.

Prolactin affects when mice shed and grow hair.

Mice hair growth patterns get more complex with age and can change with events like pregnancy or injury.

Prolactin affects hair growth cycles and can cause early hair follicle regression.

Androgens affect hair growth and shedding, with genetic and non-genetic factors influencing baldness.

New treatments and diagnostic methods for various animal skin conditions showed promising results.

Artificially inducing hair regrowth in mice can change the normal pattern and timing of hair growth, with minimal color differences between old and new fur.