Credit: Michael Barritt and Karen May, Wikimedia Commons. (http://commons.wikimedia.org/wiki/File:Macropus_robustus2.jpg)
Macropus robustus is a midsized kangaroo also known as a hill wallaroo or euro. This one is from northern Austrlia, but they also inhabit western Australia, where a University of Utah anthropologist found that wallaroo populations are highest at moderate distances from Martu Aboriginal communities. In those places, moderate levels of human disruption – grass burning to help hunt lizards and also hunting of kangaroos – suggest Aboriginal efforts to feed themselves also benefited their prey, kangaroos, in a relationship that evolved during the past 2,000 years or more.