Visitors watch a California sea lion at the Smithsonian National Zoological Park on Thursday May 26, 2022 in Washington, DC. (Photo by Matt McClain/The Washington Post)

Monks take a tiger out of its cage for an afternoon walk June 5, 2001 at the Wat Pa Luangta Bua monastery in Kanchanaburi, Thailand. (Photo by Paula Bronstein/Getty Images)

A rainbow appears over the Louisiana gulf May 26, 2010 in the Gulf of Mexico near Brush Island, Louisiana. (Photo by Win McNamee/Getty Images)

A mouse rides on the back of a frog in floodwaters in the northern Indian city Lucknow June 30, 2006. (Photo by Pawan Kumar/Reuters)

This picture taken on April 5, 2022 shows a train travelling along a bridge past cherry blossoms in Tokyo's Shinagawa district. (Photo by Philip Fong/AFP Photo)

A woman takes a selfie in front of a Lunar New Year display featuring sheep at a shopping mall in Hong Kong, February 13, 2015. (Photo by Bobby Yip/Reuters)

In this November 28, 1966 file photo, one of the 10 beagles involved in the first test of the Veterans Administration Hospital in East Orange, N.J. smokes a cigarette through a machine linked to its windpipe by a plastic tube to test any link between smoking and emphysema. (Photo by AP Photo)

A girl wearing a face mask as a precaution against the coronavirus walks past a display of garments at a market in Bengaluru, India, Saturday, January 9, 2021. India will kick off the coronavirus vaccination drive on Jan. 16 to stem the pandemic in the world's second-most populous country. A Health Ministry statement says that priority will be given to the healthcare workers and the frontline workers, estimated around 30 million. (Photo by Aijaz Rahi/AP Photo)