Murphy, Brett P.Bowman, David DGagan, Michael2015-12-080269-8463http://hdl.handle.net/1885/370731. A strong relationship between the oxygen isotope composition (expressed as δ18O) of body water and relative humidity has been demonstrated for a number of mammalian herbivores with low drinking water requirements, including kangaroos. Consequently, itKeywords: air temperature; climate effect; enamel; isotopic composition; marsupial; oxygen isotope; relative humidity; seasonal variation; stable isotope; temperature effect; transpiration; weaning; Australasia; Australia; Macropodidae; Macropus; Mammalia Australia; Climate; Herbivore; Macropus; Stable isotope200710.1111/j.1365-2435.2007.01284.x2015-12-08