What is that? From pink lakes to superb birds, these photos will make you do a double take.
Special bacteria living in Lake Hillier in Australia give the water its bubblegum color.
Photograph by Auscape, Getty Images
Mola, or ocean sunfish, are the heaviest bony fish in the sea and can weigh as much as a pickup truck.
Photograph by Franco Banfi, Nature Picture Library
The morning sun lights up a towering sand dune in the Namib Desert in Africa, but leaves the trees and ground in shadow.
Photograph by Martin Harvey, Getty Images
With their oval shape and stubby legs, sea cucumbers often go by another name: sea pigs.
Photograph by David Wrobel, Visuals Unlimited, Corbis
Why so nosy? Male proboscis monkeys use their big snouts to attract a mate.
Photograph by Visuals Unlimited, Inc., Fiona Rogers, Getty Images
Tardigrades, also called water bears, seem alien, but they live in watery habitats all over the world. You'll have trouble spotting one, though—they're too small to see without a microscope.
Image by Eye of Science, Science Source
These strange pine trees are part of a grove called the Crooked Forest in Poland, a country in Europe.
Photograph by MARCIN BIELECKI, epa, Corbis
A male superb bird of paradise lifts its back feathers behind its head, creating an optical illusion to impress a mate.
Photograph by TIM LAMAN, Nat Geo Image Collection
Click the full-screen arrows in the upper right to read the captions!