Judy, a black collie whose owner was killed by a train when trying to retrieve her after she slipped her lead. (Photo by Evening Standard/Getty Images). 17th December 1976

A handout image released by the Taronga Zoo shows Veiled Chameleon hatchlings at Taronga Zoo in Sydney, Australia, 11 March 2015. Taronga has welcomed more than 20 baby chameleons, with the last of three clutches of eggs hatching this week. Veiled Chameleons, or Chamaeleo calyptratus, are native to Saudi Arabia and Yemen and can live up to five years. (Photo by EPA/Taronga Zoo)

“My name is In Cherl Kim. I'm a PR manager of Samsung Everland. Everland is a largest theme park in South Korea. Everland has a variety of attractions and flower garden and entertainment. Among other things, Everland zoo is very unique place!” – In Cherl Kim. Photo: Ring tailed lemur. (Photo by In Cherl Kim)

Fur hats are seen on display at the 2015 China Fur and Leather Products Fair in Beijing, January 15, 2015. Hundreds of domestic and foreign fur product companies take part in the fair which runs from January 13 to 16 at the National Convention Centre. (Photo by Jason Lee/Reuters)

A panda bear sits on a logs in a zoo on January 15, 2015 in Hangzhou, China. (Photo by Feature China/Barcroft Media)

A nurse consoles herself with a box of chocolates as she reads a paper-back thriller. (Photo by Hulton Archive/Getty Images). Circa 1955

“These are the mind-bending sculptures that take up to 40 hours to create – as they're made entirely from pipe cleaners. The fuzzy flexible figures are made entirely from the tobacco cleaning tools – which are now more commonly found strewn across nurseries and art classrooms – to construct the incredible life-like animals”. – Caters News. Photo: New Pipe Cleaner Wolf. (Photo by Lauren Ryan)

Miniature pig “Nueffel” is walked in a park in Hanover, Germany, 14 April 2016. (Photo by Sebastian Gollnow/EPA)