A tiger yawns next to a piglet at the Sriracha Tiger Zoo, in Chonburi province, Thailand, June 7, 2016. (Photo by Chaiwat Subprasom/Reuters)

A newly born Indian white tiger cub yawns in its enclosure at Liberec Zoo, Czech Republic, April 25, 2016. (Photo by David W. Cerny/Reuters)

A yawning leopard appears to be laughing instead at Chobe National Park in Botswana in January 2023. (Photo by Nick Dale/Solent News & Photo Agency)

A woman yawns as she sits outside a hospital on a cold winter morning in Srinagar January 3, 2019. (Photo by Danish Ismail/Reuters)

Satarupa Chakraborty, 5, dressed as a Kumari, yawns while she is worshipped by a Hindu priest during the religious festival of Durga Puja in Agartala October 2, 2014. (Photo by Jayanta Dey/Reuters)

The hare was actually yawning and stretching but, looking back at the photos, it does look like it was laughing — probably at my husband and I as we had been sat there in the freezing conditions for about five hours just waiting for this kind of behaviour in Cairngorms, Scotland in the last decade of February 2025. (Photo by Michelle Coyle/Solent News & Photo Agency)

Female Siberian tiger Dasha yawns in the new enclosure at the zoo in Duisburg, Germany, 30 March 2016. The new facility is three times larger than the old one and will be opened to the public on the same day. (Photo by Roland Weihrauch/EPA)

An elephant calf yawns as mahouts paint elephants ahead of celebrations for the water festival of Songkran in Ayutthaya, Thailand on April 11, 2019. The annual elephant Songkran event is held to promote the tourism industry. Songkran Festival is held also to mark the Thai traditional New Year falling annually on 13 April, and it is celebrated with people splashing water and putting powder on each other faces as a symbolic sign of cleansing and washing away the sins from the past year. (Photo by Soe Zeya Tun/Reuters)