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Tennenhouse, Erica M., Putman, Sarah B., Boisseau, Nicole P., and Brown, Janine L. 2017. "Relationships between steroid hormones in hair and social behaviour in ring-tailed lemurs (Lemur catta)." Primates, 58, (1) 199–209. https://doi.org/10.1007/s10329-016-0566-7..