Two dogs sent into outer space by the Soviet Union after their safe return to earth. They spent 22 days in orbit. (Photo by Central Press/Getty Images). 22nd March 1966

Two chimpanzees share a piece of watermelon at Taronga Zoo on December 23, 2010 in Sydney, Australia. (Photo by Rick Stevens/Taronga Zoo via Getty Images)

Two children jumping through a water hydrant's shower on a New York street. They have come from a neighbouring co-educational playgroup organised by the city's Police Department. (Photo by Orlando/Getty Images). 1950

Sydney artist Phillip George poses with two surfboards of his own design at Marks Park, Tamarama on December 16, 2008 in Sydney, Australia. (Photo by Don Arnold/Getty Images)

In this Sunday, June 27, 2010 file photo two men compete in an ostrich race at Highgate ostrich farm in Oudtshoorn, South Africa. Clambering onto an ostrich for a ride used to be popular among tourists in a South African town of Oudtshoorn known of as the “ostrich capital of the world”. Not so much anymore. Two major ostrich farms in Oudtshoorn have stopped offering ostrich rides to tourists, responding to concerns about the birds’ welfare. A third farm is sticking with the feature, saying it is regulated and that ostriches do not experience discomfort. The Highgate farm, however, continues to offer ostrich rides. (Photo by Shuji Kajiyama/AP Photo)

A chimpanzee in the Osnabrück Zoo in Lower Saxony makes contact with a small zoo visitor sitting in front of a pane on September 1, 2020. The two males Lobo and Lome moved from Leipzig Zoo to Osnabrück Zoo to strengthen the social structure of the existing group. (Photo by Friso Gentsch/dpa)

A woman wearing a protective mask walks outside a village that was placed under lockdown due to the number of COVID-19 cases among residents in Manila, Philippines on Thursday, March 11, 2021. The Philippine capital placed two villages and two hotels on lockdown Thursday and police have renewed warnings against kissing and other “public display of affection” after a new surge in coronavirus infections. (Photo by Aaron Favila/AP Photo)

A crustacean walks on a road after flooding went back in Schuld, Germany, Friday, July 16, 2021. Two days before the Ahr river went over the banks after strong rain falls causing severals deaths and hundreds of people missing. (Photo by Michael Probst/AP Photo)