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This study found that hair cortisol levels in black-tailed prairie dogs, influenced by factors like predation risk and lactation, were associated with reproductive success, supporting the Cort-Adaptation hypothesis.

This review explores theories on the evolution of hair from synapsid scales and glands, proposing mechanisms supported by comparative studies, but reports no new experimental findings.

This study found that neonatal administration of finasteride reduced sensitivity to alcohol's motor-stimulating effects and increased preference for novelty and initial alcohol consumption in rats, suggesting a role in alcohol vulnerability.

This review discusses sex differences in the neuroendocrine response to stress, focusing primarily on rodent studies, and highlights open questions about the roles of gonadal hormones and sex chromosomes.

This review discusses the potential link between early postnatal allopregnanolone levels and vulnerability to drug abuse in adulthood, noting a need for more in-depth studies to confirm this relationship.