Photo of the day

When they are successful on a hunt, wolves do not eat in moderation. A single animal can consume 20 pounds (9 kilograms) of meat in one sitting. This image is from Animal Fight Club.

The Kronprinz (crown prince) Wilhelm of Prussia, with the skull and crossbones, the emblem of the Hussars, on his headdress. This image is from Apocalypse WWI: Verdun.

Iguazu Falls with rainbow in the mist. This image is from River in the Sky.

Reenactment: The crew on Mars. This image is from Mars.

Napoleon, an artillery regiment's mascot strikes a pose, donning a cap and a pipe. This image is from Apocalypse WWI: Verdun.

Two black grizzly bears while fighting. This image is from Animal Fight Club.

Iguazu Falls. This image is from River in the Sky.

Rakhine State, Myanmar: Sam and Robert Joe are on a hunt for crocodiles on Ramree Island, the site of the world's worst crocodile disaster listed in the Guinness Book. This image is from Nazi World War Weird.

NEW YORK, N.Y.- Neil deGrasse Tyson and Buzz Aldrin in Neil's office at the American Museum of Natural History. This image is from StarTalk.

Blue wildebeest dual in dust. This image is from Animal Fight Club.