A visitor observes a specimen during a festival celebrating the upcoming Earth Day at the American Museum of Natural History in New York, the United States, on April 18, 2026. An all-ages festival titled Earthfest was held at the American Museum of Natural History in New York on Saturday to celebrate the upcoming Earth Day, an annual event on April 22, with hands-on activities, science trivia, specimen identification stations, and more. (Xinhua/Zhang Fengguo)

A boy looks at a specimen during a festival celebrating the upcoming Earth Day at the American Museum of Natural History in New York, the United States, on April 18, 2026. An all-ages festival titled Earthfest was held at the American Museum of Natural History in New York on Saturday to celebrate the upcoming Earth Day, an annual event on April 22, with hands-on activities, science trivia, specimen identification stations, and more. (Xinhua/Zhang Fengguo)

Children visit a specimen identification station during a festival celebrating the upcoming Earth Day at the American Museum of Natural History in New York, the United States, on April 18, 2026. An all-ages festival titled Earthfest was held at the American Museum of Natural History in New York on Saturday to celebrate the upcoming Earth Day, an annual event on April 22, with hands-on activities, science trivia, specimen identification stations, and more. (Xinhua/Zhang Fengguo)

People watch a video titled In Search of Earth's Secretes during a festival celebrating the upcoming Earth Day at the American Museum of Natural History in New York, the United States, on April 18, 2026. An all-ages festival titled Earthfest was held at the American Museum of Natural History in New York on Saturday to celebrate the upcoming Earth Day, an annual event on April 22, with hands-on activities, science trivia, specimen identification stations, and more. (Xinhua/Zhang Fengguo)

People look at a globe during a festival celebrating the upcoming Earth Day at the American Museum of Natural History in New York, the United States, on April 18, 2026. An all-ages festival titled Earthfest was held at the American Museum of Natural History in New York on Saturday to celebrate the upcoming Earth Day, an annual event on April 22, with hands-on activities, science trivia, specimen identification stations, and more. (Xinhua/Zhang Fengguo)

Children observe specimens during a festival celebrating the upcoming Earth Day at the American Museum of Natural History in New York, the United States, on April 18, 2026. An all-ages festival titled Earthfest was held at the American Museum of Natural History in New York on Saturday to celebrate the upcoming Earth Day, an annual event on April 22, with hands-on activities, science trivia, specimen identification stations, and more. (Xinhua/Zhang Fengguo)