This tiny seahorse near Sumbawa Island, Indonesia, abandoned the seagrass it was holding when the tide came in bearing plastic and sewage — and grabbed onto this plastic and cotton raft.
This brown bear cub in Alaska's Lake Clark National Park just wanted to play and wrestle with its mother.
This whale shark swimming near the Maldives was inhaling a snack as a remora fish aimed to position itself on the shark's head.
Caco, a nine-year-old western lowland gorilla in Odzala-Kokoua National Park, Congo, relaxes while enjoying a breadfruit. Photographer Daniël Nelson was just 16 years old when he took this image, which earned him the Young Wildlife Photographer of the Year award.
A group of dozens of sperm whales met off the coast of Sri Lanka to socialize for a few days, rubbing against each other to remove dead skin.
In Arizona's Sonoran Desert National Monument, these saguaro cacti grow for up to 200 years. They spread as far underground as they stand above it in order to absorb rain.
Shot and de-horned by poachers, this dead black rhino bull lies on the ground in South Africa's Hluhluwe Imfolozi Game Reserve.
Sandbar sharks circle as they come together to feed or spawn in O‘ahu, Hawaii.
This Sumatran tiger cub was saved from a snare in a rainforest in Aceh Province on the Indonesian Island of Sumatra by an anti-poaching patrol.
These brook trout were battling for a position as a female prepared to lay eggs in her nearby nest in Magalloway River, Lincoln County, Maine.
Lions rarely attack giraffes, but Michael Cohen thinks these two in Kgalagadi Transfrontier Park, South Africa, may have noticed that the animal's misshapen hooves made it difficult to run.
A nesting leatherback turtle journeys back to the ocean in Sandy Point National Wildlife Refuge, St. Croix, US Virgin Islands.
This male orangutan swung down to the ground for a snack in Gunung Palung National Park of Borneo.
This red fox took a dive into a snowdrift in Yellowstone National Park, Wyoming, while trying to capture a vole — unsuccessfully.
