“…There are numerous studies on elephant hair addressing varied topics such as hair and protein structures in mammoth ( Gillespie, 1970 ; Valente, 1983 ; Hillary & Buys, 1984 ), reliability of hair-follicle mitochondrial DNA ( Greenwood & Pääbo, 1999 ), genetic variation in hair length candidate genes ( Roca et al, 2009 ), the migration patterns, chronologies, dietary history and seasonal dietary shift through stable isotopes from tail-hair ( Cerling et al, 2004 ; Cerling et al, 2006 ; Cerling et al, 2009 ; Wittemyer, Cerling & Douglas-Hamilton, 2009 ; Uno et al, 2020 ), forensic species identification ( Yates, Espinoza & Baker, 2010 ), thermo-regulatory properties of body hair ( Myhrvold, Stone & Bou-Zeid, 2012 ), trace element concentrations ( Hu, Fernandez & Cerling, 2018 ), tensile strength of hair ( Yang et al, 2019 ) and scent-flagging behaviour ( Raha et al, 2013 ). From existing evidence, there is no study that assessed the physiological markers in the hair of elephants.…”