Jan Kara (R) and Jan Holan pedal their boat, made with plastic bottles, on the Elbe river near Kostelec nad Labem July 15, 2014. Jan Kara, a 22-year-old student, and Jakub Bures, a 22-year-old car mechanic, built the 10-metre (32.8-feet) long boat from 5000 plastic bottles strapped to a wooden frame. (Photo by David W. Cerny/Reuters)

A squirrel crawls along an electrical cable as a kingfisher takes off from it in New Delhi, India, October 24, 2020. (Photo by Chine Nouvelle/SIPA Press/Rex Features/Shutterstock)

Cadets of Tamilnadu Police perform an acrobatic stunt during a full dress rehearsal for the upcoming Republic Day Parade in Chennai on January 24, 2021. (Photo by Arun Sankar/Profimedia/AFP Photo)

In this Sunday, February 18, 2018 photo, Palestinian camel herder Salem Rashaideh, leads the way for the camels in the territory of Israeli Kibbutz Kalya, near the Dead Sea in the West Bank. For three months a year, in the winter time Bedouin Arab herders take their 130 camels to graze on the shores of the Dead Sea, at the lowest place on Earth. (Phoro by Oded Balilty/AP Photo)

People participate in the annual “No Pants Subway Ride” in New York City, U.S., January 12, 2020. (Photo by Brendan McDermid/Reuters)

A woman touches a robot at the 2018 World Robot Conference in Beijing on August 15, 2018. The conference will be held from 15 to 19 August and will include a conference on robotics, an exhibition and a robot competition with the participation of robotics enterprises to showcase their robot products. (Photo by Wang Zhao/AFP Photo)

In this photograph taken on April 28, 2018, Afghan children work at a coal yard on the outskirts of Jalalabad, Afghanistan. (Photo by Noorullah Shirzada/AFP Photo)

Children take part in the “Carnavalito” children's parade during the Blacks and Whites Carnival in Pasto, Colombia, on January 2, 2018. (Photo by Juan Barreto/AFP Photo)