Old Heidelberg, Dog with Pipe, 1905. (Photo by Detroit Publishing Company)

A dog wears fake eyes while riding a motorcycle in Samut Sakhon, Thailand June 23, 2016. (Photo by Jorge Silva/Reuters)

A woman walks a dog with styled and dyed fur on a street in Shenyang, Liaoning province, China on December 25, 2018. (Photo by Reuters/China Stringer Network)

A dog plays with a giant soap bubble in downtown Kiev, Ukraine, 06 March 2020. (Photo by Sergey Dolzhenko/EPA/EFE)

Dog groomers participate in a contest at the “Interpets” international pet fair in Tokyo, Japan, 01 April 2021. (Photo by Franck Robichon/EPA/EFE)

A dog is worshiped during Tihar or Diwali festival in Kathmandu, Nepal on November 12, 2023. Nepali people worship dogs, dedicated solely to the human's most devoted friend and guardian on second day of Tihar fesival. “Tihar” the Hindu festival of flowers and lights, is celebrated for five days. (Photo by Sunil Sharma/ZUMA Press Wire/Rex Features/Shutterstock)

Katjinga, a Rhodesian ridgeback dog who lives on a 20-acre farm in Germany, adopted an abandoned pot-bellied piglet in August 2009. The tiny black piglet, named Paulinchen, had been so small at birth that her mother likely overlooked it. Katjinga's owner, Roland Adam, found the piglet alone and cold and brought it to his 8-year-old dog. (Photo by Fame Pictures)

Three-years-old dog Hope uses a wheelchair to run next to its owner Regine Grosinger in Vienna September 3, 2014. Hope was found with cut-off back legs in the countryside and brought to an animal asylum when it was four-month-old. Grosinger took the dog home two months later and had a wheelchair manufactured for it. (Photo by Heinz-Peter Bader/Reuters)