A runner competes in the Great Wall Marathon at the Huangyaguan Great Wall outside Beijing, China, May 18, 2019. (Photo by Thomas Peter/Reuters)

A runner in fancy dress attempts a record in the TCS London Marathon on Sunday, April 27, 2025. (Photo by John Sibley/Action Images via Reuters)

Alexander Levine crosses the Verrazzano-Narrows Bridge during the marathon in New York on November 3, 2024. (Photo by Brendan Mcdermid/Reuters)

A participant covered in coloured powder gestures as she stands near a Syrian army soldier during “I Love Damascus” marathon at Umayyad Square in Damascus, Syria October 7, 2016. (Photo by Omar Sanadiki/Reuters)

Cat-Friend vs Dog-Friend, Two Humans Acting Like House Pets

LOL!! “Adorable hamster plays dead. No hamsters were hurt in the making of this film”.

Pets get ready before running a mini-marathon for dogs in Bangkok, Thailand May 7, 2017. From tiny chihuahuas to 60 kg (130 lb) mastiffs, hundreds of dogs and their owners jogged through a Bangkok park on Sunday to raise money for charity. (Photo by Jorge Silva/Reuters)

“We've reached 40km.” – Participants run at the 40km mark of the 2025 Chosun Ilbo Chuncheon Marathon, held in Chuncheon, Gangwon Province, South Korea on the afternoon of the October 26, 2025. (Photo by Park Seong-won)