A four-year-old bulldog named Goldie wearing spectacles and a nightcap. (Photo by Fox Photos/Getty Images). 9th January 1960

Zappa, a toothless 15-year-old Italian greyhound that looks surprisingly like Sid the Sloth from the animated movie Ice Age, is redefining dog beauty. Owners Sadie and Rosalie Millen, of Pewaukee, Wisconsin, say that Zappa started sticking her tongue out a few years ago when she lost her teeth.

Archie, a Chinese Crested dog, sits with his tongue out before the start of the 20th Annual Ugliest Dog Competition at the Sonoma-Marin Fair June 20, 2008 in Petaluma, California. Owners of ugly dogs travel to Petaluma from all over the country to participate in the annual contest. (Photo by Justin Sullivan/Getty Images)

Visitors to West Midlands Safari Park in Bewdley, UK on October 17, 2023 are enjoying the bright October sunshine ahead of the storms to come. A curious giraffe meets eye to eye with a car full of happy visitors while licking the car windscreen with his long tongue. (Photo by Lee Hudson/Alamy Live News)

A woman tries to catch snowflakes with her tongue during a snowfall on Chandragiri Hills in Kathmandu, Nepal on January 23, 2019. (Photo by Navesh Chitrakar/Reuters)