These photographs of hundreds of ducks following their leader down a river are truly mesmerizing. Rafeur Rahman of Bangladesh climbed a high bridge and saw hundreds of ducks apparently playing a game of follow the leader. More than 500 ducks live on the river, where the mosses and snails provide the perfect habitat. Here: Ducks in the river Baral in Bangladesh. (Photo by Rafeur Rahman/Caters News Agency)

The Elf on the Shelf balloon floats down Sixth Avenue during the 88th Annual Macy's Thanksgiving Day Parade in New York November 27, 2014. (Photo by Andrew Kelly/Reuters)

A relative performs rituals for a man who died of coronavirus disease (COVID-19), before his cremation at a crematorium in New Delhi, India, November 19, 2020. (Photo by Danish Siddiqui/Reuters)

Two men look at the sea while taking part in the annual New Year's dive into the North Sea in Scheveningen, Netherlands on January 1, 2020. (Photo by Piroschka van de Wouw/Reuters)

Forensic investigators look at the body of a man infected with the new coronavirus who collapsed on the street and died, according to Police Captain Diego Lopez, in Quito, Ecuador, Tuesday, May 5, 2020. (Photo by Dolores Ochoa/AP Photo)

People without face masks are seen at Times Square during the coronavirus disease (COVID-19) pandemic in New York City, U.S., March 11, 2021. (Photo by Eduardo Munoz/Reuters)

A woman poses for a photo on a street decorated for the fore coming Lunar New Year in Bangkok's Chinatown on February 9, 2021. (Photo by Mladen Antonov/AFP Photo)

A person watches the sunrise from the Edge observation deck at Hudson Yards on the first day of spring on March 20, 2021 in New York City. (Photo by Noam Galai/Getty Images)