The fourth annual BigPicture Natural World Photography Competition aims to celebrate the diversity of life on Earth, and encourages people to protect and conserve it. Here: “The Salmon Catchers”. Terrestrial Wildlife. To capture this view of a mother grizzly bear and her cub, photographer Peter Mather set up a camera trap on a log that he knew the bears tended to traverse while fishing for salmon, in the Yukon River watershed in Canada. (Photo by Peter Mather/BigPicture Natural World Photography Competition 2017)

An innovative photographer attached a camera to a remote-controlled car, allowing him to capture angles of wild lions, rhinos and other animals. Over the last 11 years, Chris Bray has been taking pictures of animals using his toy car contraption while he takes guests on photography tours in Kenya. (Photo by Chris Bray/Caters News Agency)

Tourist Michel Watson found this pink dolphin making a splash in Brazil. The unusual creature, which hides deep in the Rio Negro river, was spotted leaping out of the Amazonian water brandishing its bizarre bright bubblegum color. Weighing in at nearly 300 pounds, the curious animal, known as an Amazon Pink River Dolphin, looked unusually agile as it rose above the waves. (Photo by Michel Watson)

Physicist Arie van't Riet uses a series of duel X-ray cameras to capture flowers, plants and small animals in living dioramas. The x-rays are then finished and colorized in Photoshop. Giving way to some breathtaking nature scenes. Photo: “Chameleon and Begonia”. (Photo by Arie van't Riet)

Hi! I’m Andy, a ginger with a camera. I’m a Melbourne-based photographer who’s more than a little obsessed with Photoshop. I’m currently working on a 365 Project, creating one image every single day for a year.

Novice DSLR (Digital single-lens reflex camera), 2nd Place. “Smile of a Friend”, American Crocodile (Crocodylus acutus) in Jucaro, Cuba. (Photo by Antonio Pastrana/The Ocean Art 2018 Underwater Photography Competition)

Most probably wouldnt think of snakes, spiders and lizards as beautiful animals – but these photographs could change some minds. The images show the reptiles seemingly playful sides, from a gleeful looking Budgetts frog, a cheeky leopard sticking out its tongue at the camera and a stack of four colourful iguanas. Contrasted against a white background and shot with a Canon EOS 5D Mark 2 and macro lens, photographer Mickael Leger really made sure they could be seen in all their glory. Here: Gecko. (Photo by Mickael Leger/Caters News)

Moroccan photographer and filmmaker Achraf Baznani carries on the traditions of Surrealism with his wild, imaginative, and wholly impractical imagery. Among his inventive scenarios, small human figures—often the artist himself—appear trapped within glass jars or the size of a camera lens; in other works, Baznani more or less dissects his body, as for example, in one, he cleanly removes his brain from his cranium, or in another, twists off his hand, much as if it were a light bulb. Imparted throughout such works are strong senses of humor and wonder, and as such, Baznani’s art offers a Surrealistic take on life experience in the digital age.