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

Prairie dogs with fewer neighbors are more stressed but their number of babies isn't affected.

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

Heavily hunted wolves have higher stress and reproductive hormone levels.

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

Analyzing bear poop helps measure their stress without harming them.

Androgen receptors in the mouse brain may explain cognitive and mood changes in prostate cancer treatment.

Wild geladas in crop areas show less grooming and aggression.

Hyperadrenocorticism in ferrets is linked to neutering and indoor housing, and is best treated with surgery and a deslorelin implant.

Neurosteroids play a key role in controlling the brain-adrenal gland activity in pregnant sheep, both in normal and stressful situations.

Neurosteroids affect prolactin levels in sheep differently depending on stress and pregnancy conditions.

Giving melatonin to sheep before the non-breeding season can improve their chances of reproducing in northwest Mexico.

Goat reproductive activity and coat growth are affected by light and temperature, with temperature altering prolactin levels and hair growth, but not melatonin or estrus onset.

Melatonin may help with sleep issues, depression, and cancer, but more research is needed.

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

Goat hair growth and follicle activity change with the seasons and differ between males and females.

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

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

Finasteride negatively affects fish reproduction and gonadal development.

Timing of light therapy affects horse coat growth, with photoperiod being crucial.

Different types of androgens bind differently to two receptors, AR1 and AR2, in Atlantic croaker's brain and ovarian tissues, suggesting these receptors may control different androgen actions in fish.

Potassium channel openers like minoxidil help hair grow by acting on hair follicles.

The cause of atypical Cushing's syndrome in dogs, possibly linked to sex hormones, is not yet proven.

Hair follicles and deer antlers regenerate similarly through stem cells and are influenced by hormones and growth factors.

The review concludes that innovations in regenerative medicine, tissue engineering, and developmental biology are essential for effective tissue repair and organ transplants.

Hair loss peaks in spring and regrowth in late summer, with pregnant females losing the most hair.

PCOS may have evolved as an advantage in past environments with food scarcity.

Hair analysis for stress and reproductive hormones in wildlife needs more research for accuracy across species.

Hormonal changes during the reproductive cycle may cause seasonal skin problems in captive female fossas.

Melatonin improved sheep reproduction, being more beneficial and cost-effective in males.