A prototype Rollkers transportation device is displayed during a press event at the Mandalay Bay Convention Center for the 2015 International CES on January 4, 2015 in Las Vegas, Nevada. The product is not a skate; it balances for you and when you place it on the bottom of your shoe, it gives you the ability for faster transportation based on walking. The balance CES, the world's largest annual consumer technology trade show, runs from January 6-9 and is expected to feature 3,600 exhibitors showing off their latest products and services to about 150,000 attendees. (Photo by Ethan Miller/Getty Images)

A man wearing a protective face mask takes a photo near an art exhibition at a shopping mall, amid the coronavirus disease (COVID-19) outbreak in Jakarta, Indonesia, March 15, 2021. (Photo by Ajeng Dinar Ulfiana/Reuters)

In this Saturday, May 7, 2016 photo, Afghan refugee Shazia Lutfi, 19, peeks through the door of her room at the former prison of De Koepel in Haarlem, Netherlands. The government has let Belgium and Norway put prisoners in its empty cells and now, amid the huge flow of migrants into Europe, several Dutch prisons have been temporarily pressed into service as asylum seeker centers. (Photo by Muhammed Muheisen/AP Photo)

A handout picture provided by the press service of MORTON Group of Companies, show the balloon of Russian adventurer Fedor Konyukhov in the sky during his solo round-the-world balloon flight just after taking off from a spot near Northam, 96 kilometres north-east of Perth in Western Australia, 12 July 2016. Fedor Konyukhov took off from Northam on 12 July 2016 in attempt to beat the record of 13 days of American aviator Steve Fossett. (Photo by EPA/Morton Press Service)

A British woman plays a piano designed especially for people who are confined to bed. Date: 1935. (Photo by Mary Evans Picture Library/Caters News)

“The Africanis is a landrace of South African dogs. It is believed to be of ancient origin, directly descended from hounds and pariah dogs of ancient Africa, introduced into the Nile Valley from the Levant. The Swahili name for the breed is umbwa wa ki-shenzi meaning common or mongrel or “traditional dog”. Africanis is also an umbrella name for all the aboriginal dogs in southern Africa”. – Wikipedia. Photo: Africanis 18. Murraysburg, Western Cape, May 10, 2010. (Photo by Daniel Naudé)

Snoopy the Cat (大肥猫宝儿) is one of the most popular cats in the world especially in China. She is an Exotic Shorthair cat with a lovely master that takes pictures of her everyday.