Echidna (Tachyglossus aculeatu), Kangaroo Island, South Australia, Australia, Pacific
Porcupine (Erethizon dorsatum), Medicine Bow National Forest, Wyoming, United States of America, North America
An adult bull porcupine caribou (Rangifer tarandus granti), hiding in fall color changes in Denali National Park, Alaska, United States of America, North America
Spinifex grass grows in arid ground at King's Canyon, Northern Territory, Australia