A violent eruption spews ash more than a kilometer into the sky above Mount Etna in Sicily on February 23, 2021. (Photo by Marco Restivo/Barcroft Studios via Getty Images)
A team of female cadets takes part in a tug-of-war competition at Budyonny Military Academy of the Signal Corps in St Petersburg, Russia on March 7, 2021. (Photo by Peter Kovalev/TASS/Profimedia)
A climate activist wears an oxygen mask to demonstrate the possibility of pumping oxygen from a tree in a bottle in the future, during a protest against the government's deforestation practices of Sri Lanka's main wildlife forests for developments in Colombo, Sri Lanka on March 22, 2021. (Photo by Dinuka Liyanawatte/Reuters)
Two one-year old baby mountain gorillas play together in the forest of Bwindi Impenetrable National Park in southwestern Uganda on Saturday, April 3, 2021. (Photo by AP Photo/Stringer)
Kashmiri woman takes part in a physical test of a recruitment rally for the Special Police Officers (SPO) in Jammu and Kashmir Police, in Srinagar on December 6, 2019. As many as 23,000 people have applied for posts in the Special Police Officers (SPO) in Jammu and Kashmir Police and 100 positions will filled in the current phase of recruitment, local authorities said. (Photo by Tauseef Mustafa/AFP Photo)
Three white tigers cub born on January 05, 2020 stand beside their mother Orissa at the zoological park of Amneville, northeastern France, on March 9, 2020. (Photo by Jean-Christophe Verhaegen/AFP Photo)
A dog wearing a mask is seen on a street following an outbreak of the novel coronavirus disease (COVID-19), in Shanghai, China on March 22, 2020. (Photo by Aly Song/Reuters)