This was one of many photos off the coast of Koh Tao in Thailand, near Koh Phangan, where Nick Kelly - the photographer - trained. A fish just happened to steal the shot.
Ever seen a whale photobomb a juvenile gull? You have now. Photo via @raubrey
Photobombing the photographer. This delightful picture was taken at the Kabardino-Balkaria reserve in Russia. Commenters believe this goat is either a Caucasian Tur or an Alpine ibex. Either way, it's a big goat!
If you want to photobomb someone, it takes hard work and speed. This sloth has both. He dropped in front of several international student volunteers in Costa Rica posing for a photo. Photo: Manuel Ramirez
Melissa Brandts wasn't trying to take a photo of this ground squirrel at Banff National Park. She'd set up the camera's timer so that she'd have a nice picture of herself and her husband, with spectacular Lake Minnewanka in the background.
She hadn't counted on this ground squirrel hogging the foreground.
Photo by Melissa Brandt, from the Your Shot Daily Dozen at National Geographic magazine.
French photographer Michel Watson, along with other photographers, tried to shoot penguins on South Georgia Island in the Falklands, but a photobombing elephant seal wanted to be the star of the show.
“What are you looking at?”
This is one animal behaving badly after a cow is spotted 'butting' in and photobombing a horse.