“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)

Protesters wear gas masks in the front of the Romanian Environment Ministry in Bucharest March 4, 2019, to demand better air. Dozens of people holding placards reading “Our children don't breath air anymore” gather in the front of the Environment Ministry to ask for better breathable air in Bucharest. (Photo by Daniel Mihailescu/AFP Photo)

Osman Abdulahi carries fish at the Orobo beach in Hamarweyne district of Mogadishu, Somalia on November 5, 2021. (Photo by Feisal Omar/Reuters)

Vendors warm themselves as they light a bonfire at a market during a nationwide power outage, in Muzaffarabad on January 23, 2023. A massive power breakdown in Pakistan on January 23 affected most of the country's more than 220 million people, including in the mega cities of Karachi and Lahore. (Photo by Sajjad Qayyum/AFP Photo)

A vendor arranges dates on his cart at a market in Rawalpindi on June 1, 2023. (Photo by Farooq Naeem/AFP Photo)

A participant at London Pride 2022 parade takes a mocking selfie next to Christian extremists protesting the parade in Piccadilly on July 2, 2022. (Photo by Vuk Valcic/ZUMA Press Wire/Rex Features/Shutterstock)

“Freedom”. After the 30 years banning import large motorcycle, in 2007, the Taiwan government reopened the import licensing of the motorcycle displacement over 550 cubic centimeter. Those large bikes, which were never seen before, were strange thought and treated unequally frequently. However, those adversity will not stop those enthusiastic bike riders from chasing the road of freedom. Photo location: Taiwan. (Photo and caption by 火花 羅/National Geographic Photo Contest)

“The V-30 Warhawk was designed by Blackshaw Avionics as a long-range fighter and was primarily used by the Arcadian Air Force for escort duties. The plane pictured is the “Spirit of Freedom” and was one of the four planes that escorted the Arcadian Royal Airship during and after the Great War. The three other fighters were the “Spirit of Hope”, the “Spirit of Justice” and the “Spirit of Destiny”. All pilots were hand-picked by the Head of Airborne Forces and included some of the very finest pilots in the Kingdom. The crew consisted of one pilot and one gunner although both cabins were fitted so that if either crew member was killed the other could take over their duties. Each Warhawk was fitted with four Haverlock “Banshee” engines and four 24mm machine guns”. (Photo and comment by Jon Hall)