A cyclist rides the path around Lake Harriet on Memorial Day in Minneapolis on Monday, May 25, 2020. The area around the Lake Harriet Bandshell was busy but not crowded on Memorial Day evening. (Photo by Jeff Wheeler/Star Tribune via AP Photo)

A protester reacts during a rally against the government's restrictions following the coronavirus disease (COVID-19) outbreak, in Berlin, Germany, August 29, 2020. (Photo by Christian Mang/Reuters)

In this handout image provided by Parks Australia, thousands of red crabs are seen walking in a drain on November 23, 2021 in Christmas Island. The annual migration of red crabs begins with first rains of the wet season on Christmas Island, usually around October or November. Millions of the red crabs make their way across the island to the ocean to mate and spawn. (Photo by Parks Australia via Getty Images)

A shepherd and his flock in the Bitlis province of eastern Turkey in the first decade of April 2024. Shepherds regularly embark on gruelling journeys through the dusty outback, as they take their sheep to the high plateaus needed for grazing and then back to villages for milking. (Photo by Kahraman Kaya/Solent News)

The fairy chimneys are seen with light illuminations created with different techniques in Cappadocia, Nevsehir, Turkiye on August 01, 2024. Fairy chimneys are formed by volcanic eruptions and erosions over millions of years and are considered as one of the unique characteristics of the geography. (Photo by Harun Ozalp/Anadolu via Getty Images)

Steph Wood of the Lightning shoots as Remi Kamo of the Firebirds attempts to block her shot during the round 14 Super Netball match between Sunshine Coast Lightning and Queensland Firebirds at University of Sunshine Coast Stadium, on June 18, 2023, in Sunshine Coast, Australia. (Photo by Bradley Kanaris/Getty Images)

A dog owner feeds her dog during a dinner for dogs event ahead of the Lunar New Year at Kong Shan Yunnan Bistro restaurant in Shanghai, China, on January 25, 2025. (Photo by Go Nakamura/Reuters)

Among the fish populations that could be harmed by the Xayaburi dam in Laos is the critically endangered Mekong giant catfish, considered by the Guinness Book of World Records to be the world’s largest freshwater fish. The fish, which grows to 650 pounds and about 10 feet long, is only found in the Mekong River. It is migratory, moving between downstream habitats in Cambodia upstream to northern Thailand and Laos each year to spawn. Some experts fear the Xayaburi dam could block the migration and drive the giant catfish to extinction. (Photo by Courtesy of Zeb Hogan/University of Nevada, Reno)