Like Download 1.01 MB Halt, Who Goes There? 4515 x 3010 pixels Aspect ratio 3:2 NIKON D3400 550 mm f/7.1 1/200 s ISO 280 Online since: 6 September 2019 Taken: 5 September 2019 CC0 / Public Domain chipmunk ground squirrel animal natural environment upright posture wary on guard closeup