WWII veterans attend a ceremony to place tobacco pouches of soil from WWII mass graves of Red Army soldiers abroad, in the custody of the Central Armed Forces Museum in Moscow, Russia on March 6, 2020. The grave soil has been brought from Abkhazia, Germany, Kyrgyzstan, US, Ukraine, France, Estonia, Mongolia, Bulgaria, UK, Uzbekistan and South Ossetia. (Photo by Alexander Shcherbak/TASS)

Residents wearing facemasks as a preventive measure against the spread of the COVID-19 coronavirus sit in a passenger pick-up on a street in Rawalpindi on March 13, 2020. (Photo by Aamir Qureshi/AFP Photo)

Russian Orthodox priest, Father Nikolai Gensitsky, speaks with believers while having a festive meal during the Easter celebrations in a church in the village of Yekaterininskoye in Omsk Region, Russia on April 19, 2020. (Photo by Alexey Malgavko/Reuters)

Steven Busulwa, an animal keeper, runs away from a charging rhino at the Uganda Wildlife Conservation Education Center (UWEC) amid the lockdown as part of the measures taken to prevent the spread of the coronavirus disease (COVID-19), within Wakiso district, in Entebbe, Uganda on April 20, 2020. (Photo by Abubaker Lubowa/Reuters)

Yoga instructors from Anahata Yoga Zone perform yoga postures on a building's terrace in Hyderabad on June 18, 2020, ahead of the International Yoga Day annually celebrated on June 21. (Photo by Noah Seelam/AFP Photo)

In this picture taken with a drone a man and a woman enjoy the beautiful weather at the Langwieder See (Lake Langwieder) in Munich, Germany, Thursday, June 18, 2020. (Photo by Sven Hoppe/dpa via AP Photo)

Sugar gliders, Candy and Popcorn, enjoy their favourite food, Nectar, at Wild Life Sydney Zoo on February 14, 2017 in Sydney, Australia. The treat made up of honey, high protein baby cereal and egg yolks is the human equivalent to chocolate to the Sugar Gliders. St. Valentine's Day or the Feast of Saint Valentine began as a celebration of the early Christian Saint Valentinus. From the 18th Century onwards it has steadily transformed into a celebration of romantic love and sentiment in many countries around the world. (Photo by James D. Morgan/Getty Images)

Women walk past a pile of rubbish bags on a street during a strike by garbage collectors demanding delayed salaries in Sanaa, Yemen May 8, 2017. (Photo by Khaled Abdullah/Reuters)