Emu with Kangaroo, Flinders Ranges National Park, South AustraliaThe emu is the second tallest bird in the world behind the ostrich. Like the ostrich it is flightless. But it can run pretty fast at 31 miles per hour. In this photo (taken in Flinders Ranges National Park in Southern Australia) it almost looks like the emu wants to test that speed in a race against the red kangaroo in the background — as if they’re both waiting for the starting gun before sprinting out of the blocks.
Nikon D200 with Nikkor 600mm f/5.6 manual focus lens, ISO 200, f/8 at 1/250th of a second