Early-risers take part in an exercise program at dawn in Bug Light Park, Wednesday, September 20, 2023, in South Portland, Maine. Most of the state is enjoying a pleasant, dry stretch of weather that should last through Saturday. (Phoot by Robert F. Bukaty/AP Photo)

“Hippo Chase”. As we approached the camp the Selinda Reserve of northern Botswana our boat passed by a hippo resting in the water. I turned around to look back at the boat's wake and saw the hippo charging after us! The hippo must've been tired from an all-nighter because he was angry. He rose way up out of the water three times trying to chase our boat! He was coming at us with such force that he created a wake of his own. Photo location: Selinda Reserve of northern Botswana. (Photo and caption by Curtis Simmons/National Geographic Photo Contest)

“Double head vulture”. On the day of windy days during raptors migration some people in my country start to catch these tired raptors, so in this day we go to photograph some raptors and we saw these tow tired vultures, so we start to drag them away from the hunters until they reach a good hidden place, to make them safe until they start a new journey. Photo location: Kuwait. (Photo and caption by Mohd Khorshed/National Geographic Photo Contest)

A supporter of Venezuela's President Nicolas Maduro, with a doll depicting late Venezuela's President Hugo Chavez on his hat, reacts as he stands at the Plaza Bolivar near the building housing the National Assembly in Caracas, January 5, 2016. (Photo by Christian Veron/Reuters)

A man wades through a water-logged road after rains ahead of Cyclone Yaas at Digha in Purba Medinipur district in the eastern state of West Bengal, India, May 26, 2021. (Photo by Rupak De Chowdhuri/Reuters)

A Christian devotee participates in a re-enactment of the crucifixion of Jesus Christ on Good Friday in Chennai on April 7, 2023. (Photo by R.Satish Babu/AFP Photo)

The 26th annual National Geographic Traveler Photo Contest is now accepting submissions. Official categories include: “Travel Portraits”, “Outdoor Scenes”, “Sense of Place” and “Spontaneous Moments”. The contest is accepting entries until June 30. Photo: “Forest lights”. Aurora Borealis over the forest of the Pyhae Luosto National Park, Finland. (Photo and caption by Nicholas Roemmelt/National Geographic Traveler Photo Contest)

A tourist takes a selfie with pelicans on the bench in St. James's Park in Westminster, central London on June 19, 2024. (Photo by Marcin Nowak/London News Pictures)