Naked cyclists wearing masks, ride through the streets of Mexico City during the World Naked Bike Ride day, Saturday, June 11, 2022. (Photo by Eduardo Verdugo/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)

A Nepalese woman offers prayers to the setting Sun on the bank of Bagmati River during the Chhath Puja festival in Kathmandu, Nepal, Wednesday, November 10, 2021. During Chhath, an ancient Hindu festival, rituals are performed to thank the Sun God for sustaining life on earth. (Photo by Niranjan Shrestha/AP Photo)

An Asian elephant called “Plai Deaw” goes for a walk on a mountain road in Nakhon Nayok, Thailand on July 11, 2022. The bull has become well known in the area for his taste for venturing out from the deep forest and emerging among cars and village homes. Thailand has an estimated 2,000 Asian elephants living in the wild but there is often conflict when they come into contact with humans on roads and in villages. A similar number of elephants are kept captive where they work in zoos and are hired out for religious festivals and weddings. (Photo by Mongkol Pitakmoo/ViralPress)

A seal infront of a passing cruise ship on the shore between Sandhaven village and Fraserburgh in Scotland in August 2023. (Photo by Mark Grant/Caters News Agency)

An adorable baby owl has proved to be a real heart-breaker thanks to its heart-shaped head. Although Griffin the Lesser Sooty Owl might look like a feather duster, the tiny eight-week old chick will soon be ready to fly. And the heart outline that surrounds his giant eyes and beak means he is set to be the star of the bird show at Taronga Zoo, Sydney. (Photo by Caters News Agency)

A spectator cools herself at a water spraying fan at the Australian Open tennis championships in Melbourne, Australia, Tuesday, January 17, 2017. (Photo by Kin Cheung/AP Photo)

“Just hanging out”. As full autumn hits the valley of Hallingdal in Norway, this bear chills out in a tree which seems to barely cover its weight. Photo location: Flå, Hallingdal, Norway. (Photo and caption by Jorgen Tharaldsen/National Geographic Photo Contest)