Owen Newman / Female red kangaroo backlit in evening sun {Macropus rufus} Sturt NP NSW Australia

Owen Newman / Female Red kangaroo backlit at sunset {Macropus rufus} Sturt NP New South Wales Australia

Owen Newman / Male Red kangaroos fighting {Macropus rufus} Sturt NP, New South Wales Australia

Jouan & Rius / Red kangaroo (Macropus rufus) male, Flinders Ranges National Park, South Australia, Australia

Jouan & Rius / Red kangaroo (Macropus rufus) male standing on back legs, Flinders Ranges National Park, South Australia, Australia

Dave Watts / Red kangaroo male bounding towards camera. {Macropus rufus) NSW, Australia. The kangaroo is the animal long jump champion , able to clear 13m (the length of a bus) from a standing start. the human rec...

Warwick Sloss / Male Red kangaroo {Macropus rufus} feeding, Fowlers Gap Research Station, New south wales, Australia

Hiroya Minakuchi / Western Grey Kangaroo (Macropus fuliginosus) mother grazing with joey in pouch, Australia

Mitsuaki Iwago / Red Kangaroo (Macropus rufus) joey inside mother's pouch, 130 days old, Australia

Mitsuaki Iwago / Red Kangaroo (Macropus rufus) newborn joey feeds while inside mother's pouch, 30 days old, Australia

Mitsuaki Iwago / Red Kangaroo (Macropus rufus) male and female with joey in pouch, Sturt National Park, Australia

Mitsuaki Iwago / Red Kangaroo (Macropus rufus) joey inside mother's pouch, 130 days old, Australia

Mitsuaki Iwago / Red Kangaroo (Macropus rufus) male portrait, Australia

Mitsuaki Iwago / Red Kangaroo (Macropus rufus) mother embracing joey, Sturt National Park, New South Wales, Australia

Mitsuaki Iwago / Western Grey Kangaroo (Macropus fuliginosus) mother grazing with joey in pouch, Australia

Mitsuaki Iwago / Red Kangaroo (Macropus rufus) scratching itself, Australia

Mitsuaki Iwago / Red Kangaroo (Macropus rufus) mother hopping with young in pouch, Australia

Mitsuaki Iwago / Red Kangaroo (Macropus rufus) juvenile scratching its nose, Australia

Mitsuaki Iwago / Red Kangaroo (Macropus rufus) male resting, Australia

Mitsuaki Iwago / Red Kangaroo (Macropus rufus) hopping through dry grass, Australia

Shin Yoshino / Red Kangaroo (Macropus rufus) resting, Australia

Mitsuaki Iwago / Red Kangaroo (Macropus rufus) pair with clearing storm at sunset, Sturt National Park, Australia

Mitsuaki Iwago / Red Kangaroo (Macropus rufus) male hopping, Australia

Mitsuaki Iwago / Red Kangaroo (Macropus rufus) male lounging, Australia

Bruce Thomson / Red kangaroo (Macropus rufus) on open plain. showing brown and grey forms, Diamantina River, Queensland, Australia.

Enrique Lopez-Tapia / Red kangaroo (Macropus rufus) grazing. Phillip Island, Victoria, Australia. Captive.

Enrique Lopez-Tapia / Red kangaroo (Macropus rufus) grazing. Phillip Island, Victoria, Australia. Captive.

Enrique Lopez-Tapia / Red kangaroo (Macropus rufus) grazing in grassland, two Emu (Dromaius novaehollandiae) in background. Phillip Island, Victoria, Australia. September 2008. Captive.

Enrique Lopez-Tapia / Red kangaroo (Macropus rufus), two at roadside drinking water from puddles on road, a behaviour that results in collisions with vehicles. Northern Territory, Australia. 2008.

Steven David Miller / Red Kangaroo (Macropus rufus) male resting in the shade during the heat of the day, Alice Springs Desert Park, Northern Territory, Australia. May. Captive.

Aflo / Red kangaroo, (Macropus rufus), female with subadult, Sturt National Park, New South Wales, Australia

Aflo / Red kangaroo, (Macropus rufus), adult male portrait, Sturt National Park, New South Wales, Australia

Roland Seitre / Red kangaroo (Macropus rufus) tiny baby suckling in pouch, Mount Isa, Queensland, Australia. Captive.

Roland Seitre / Red kangaroo (Macropus rufus) Seemore Downs, Kinclaven, Rawlinna, Western Australia, Australia.

Roland Seitre / Red kangaroo (Macropus rufus) in habitat, Astrelba Downs National Park, Bedourie, Queensland, Australia.

Roland Seitre / Red kangaroo (Macropus rufus) in habitat, Seemore Downs, Kinclaven, Rawlinna, Western Australia, Australia.

Roland Seitre / Red kangaroo (Macropus rufus) drinking at water hole, Kilcowera station, Thargomindah, Queensland, Australia.

Roland Seitre / Red kangaroo (Macropus rufus) mother and joey at water hole, Kilcowera station, Thargomindah, Queensland, Australia.

Inaki Relanzon / Red Kangaroo (Macropus rufus) lying dead on the road after being killed by a car, South Australia State, September 2011.

Jouan & Rius / Head portrait of Red Kangaroo (Macropus rufus) in profile, Pilbara region, Western Australia

Jouan & Rius / Red kangaroo (Macropus rufus) hopping, Mungo National Park, New South Wales, Australia

Jouan & Rius / Red kangaroo (Macropus rufus) hopping, Mungo National Park, New South Wales, Australia

Jouan & Rius / Red kangaroo (Macropus rufus) with large joey, Kinchega Ranges National Park, New South Wales, Australia

Jouan & Rius / Red kangaroo (Macropus rufus), Kinchega National Park, New South Wales, Australia

Jouan & Rius / Red kangaroo (Macropus rufus) hopping, Kinchega National Park, New South Wales, Australia