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)

Couples take part in a competition during a mass wedding of 64 doctoral student couples at Harbin Institute of Technology, a university in Harbin, Heilongjiang province, China, June 4, 2017. (Photo by Reuters/Stringer)

Yeshiva School students briefly dance on Grant Street after the menorah lighting outside of the City-County Building for the fifth night of Hanukkah, Thursday, December 26, 2019, in downtown Pittsburgh. (Photo by Alexandra Wimley/Pittsburgh Post-Gazette via AP Photo)

An employee in protective gears sprays disinfectant at the main exhibition tank at the Sea World at Jaya Ancol Dream Park as it is closed for public in the wake of coronavirus outbreak in Jakarta, Indonesia, Saturday, March 14, 2020. Indonesia's capital city announced a lockdown of all tourist destinations and entertainment spots as well as the closing all of its public schools for the next 14 days amid the global outbreak. For most people, the new coronavirus causes only mild or moderate symptoms. For some it can cause more severe illness. (Photo by Dita Alangkara/AP Photo)

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)

Students dressed as Hindu Lord Shiva, also known as Nataraja, the Lord of Dancers, during a religious event in Mumbai, India, August 30, 2018. (Photo by Francis Mascarenhas/Reuters)

A transgender woman waits backstage to perform during an event to raise funds for their community in Mumbai, India, September 20, 2018. (Photo by Francis Mascarenhas/Reuters)

Individuals and populations student winner. Limbing in the Tropics, photographed in Manaus, Brazil. While walking in the Amazon rainforest looking for bat roosts to set up mist nets to capture bats for scientific research, a faint and almost imperceptible noise suddenly caught this photographer’s attention. An anteater was climbing with exceptional ability in a tangled mess of branches and lianas. (Photo by Adrià López Baucells/University of Lisbon/British Ecological Society)