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)

Law enforcement officers detain a demonstrator during a protest against federal immigration sweeps near the U.S. immigration court at the Jacob K. Javits Federal Building in New York City, on June 10, 2025. (Photo by Eduardo Munoz/Reuters)

A dog jumps into a pool at the “Dogs and Fun” fair at the Westfalenhallen congress centre in Dortmund, western Germany, on May 23, 2025. Until May 25, dog breeds and dog-related shows, activities and products will be presented during the fair at the Messe Dortmund event venue. (Photo by Ina Fassbender/AFP Photo)

A traffic police officer directs vehicles at a street junction during sunset in Pyongyang, North Korea, Thursday, August 25, 2016. (Photo by Dita Alangkara/AP Photo)

People in Mexico wave at U.S. Border Patrol agents on horseback patrolling the U.S.-Mexico border fence near San Diego, California, U.S., November 10, 2016. (Photo by Mike Blake/Reuters)

B-boy Amin Drillz of Austria (front) competes during the 2022 World Breaking Championship at the Olympic Park in Seoul on October 21, 2022. (Photo by Anthony Wallace/AFP Photo)

Picture dated January 16th, 2023 the Red Arrows training over RAF Scampton in Lincolnshire. The Red Arrows continued their winter training over RAF Scampton in Lincolnshire yesterday, Monday. The planes were seen soaring across the sky and leaving trails of smoke as they practised their famous aircraft formations. The vapour trails were illuminated by the sunlight as the planes rehearsed in the late afternoon. (Photo by Caroline Haycock/Bav Media)

A group of boys toss their friend into the water at Good Harbor Beach in Gloucester, Massachusetts, United States on June 25, 2024. New England temperatures reached into the high 80's(F) and low 90's(F) this week after a heatwave brought temperatures close to 100(F) last week. Heat domes causing heatwaves have been hitting the US over the past week with high alerts placed in the I-95 corridor on the East Coast. The National weather service has predicted above-normal temperatures for most the US for the month of July. (Photo by Joseph Prezioso/Anadolu via Getty Images)