A Muslim worshipper attends a mass prayer against COVID-19, the new coronavirus, in Dakar on March 4, 2020, after two cases were confirmed in Senegal in the previous days. Across the world, 3,155 people have died from the virus. More than 92,723 have been infected in 78 countries and territories, according to AFP's latest toll based on official sources at 1700 GMT on March 3, 2020. (Photo by John Wessels/AFP Photo)

Yu Jietao, 26-year-old wood carver, sits in his homemade wooden car along a street in Guangfeng county of Shangrao, Jiangxi province, China February 9, 2015. The car can travel as fast as 30 km (18.6 miles) per hour, local media reported. (Photo by Reuters/Stringer)

Yulin, a city in southern China, celebrates the summer solstice by throwing a festival that involves the slaughter and consumption of as many as 10,000 dogs. Not everyone in China supports such practices, however; 65-year-old Yang Xiaoyun, a retired teacher who runs an animal shelter in Tianjin, traveled more than 2,400 km (1,500 miles) and spent more than 7,000 yuan ($1,100 or €990) to save 100 dogs from certain death.

SpaceX, the space transportation company built from scratch by visionary billionaire Elon Musk, has the grand goal of space travel evolution through the use of re-usable rockets. Its technology – which has proven its worth several times – can reduce the costs of space transportation to its fraction, making it a more affordable way of reaching orbit or traveling beyond.

A tearful Beatle lover pleads unsuccessfully with a policeman to carry her fan button to Ringo, one of the four mop-top singers who drew squeals and shrieks from more than 30,000 spectators at two Indiana State Fair shows in Indianapolis on September 4, 1964. (Photo by Bob Daugherty/AP Photo)

The number of soldiers on both sides of WWII that were killed or went missing is just staggering. Now, the mystery surrounding one RAF pilot and what happened to him and his plane has been solved after 70 years. RAF flight Sergeant Dennis Copping climbed into his Kittyhawk P-40 aircraft in June 1942 to fly the plane to another airbase for repairs. He was never seen or heard from again.

“Hippo Chase”. As we approached the camp the Selinda Reserve of northern Botswana our boat passed by a hippo resting in the water. I turned around to look back at the boat's wake and saw the hippo charging after us! The hippo must've been tired from an all-nighter because he was angry. He rose way up out of the water three times trying to chase our boat! He was coming at us with such force that he created a wake of his own. Photo location: Selinda Reserve of northern Botswana. (Photo and caption by Curtis Simmons/National Geographic Photo Contest)