21 citations
,
January 2017 in “MethodsX” This study found that methanol is more effective than isopropanol at removing external cortisol from grizzly bear hair and suggests that the choice of solvent can influence hair cortisol concentration results.
25 citations
,
August 2017 in “Frontiers in Zoology” In this study, the researchers reported extensive gene loss and high pseudogenization rates of α-keratin genes in cetaceans compared to terrestrial mammals, likely linked to hair loss and aquatic adaptations.
9 citations
,
August 2020 in “Ecological indicators” This study in western Hudson Bay, Canada, examined trace elements in the hair of adult male polar bears and found significant differences in concentration patterns along the hair length, suggesting laser ablation ICP-MS is a promising tool for monitoring these variations over time.
February 2023 in “Malaysian Journal of Science. Series B, Physical & Earth Sciences” This review summarizes the use of fecal glucocorticoid metabolite analysis to monitor stress across various bear species and reports no new clinical results.
January 2025 in “Conservation Physiology” This study developed and tested two methods to accurately quantify hair growth rates in polar, black, and grizzly bears using dye application and isotopically labelled amino acids, revealing growth rate variations by individual and season.