Ceremonial skulls La Paz, Bolivia on November 6, 2020. Toads are in Bolivia symbols of the soil and of luck. They complement the Ñatitas, skulls of deceased people that are believed to have special powers. People ask them for different favours. The tradition is related to All Saints´ Day. (Photo by Radoslaw Czajkowski/Rex Features/Shutterstock)

A boy wearing a dress-up costume to mark the upcoming Jewish holiday of Purim, which is a celebration of the Jews' salvation from genocide in ancient Persia, walks on a street in the ultra-Orthodox Jewish neighbourhood of Mea Shearim in Jerusalem on February 24, 2021. (Photo by Ammar Awad/Reuters)

A vegetable vendor wearing gloves and face mask as a precaution against the coronavirus interacts with a customer in Bengaluru, India, Sunday, October 11, 2020. India's confirmed coronavirus toll crossed 7 million on Sunday with a number of new cases dipping in recent weeks, even as health experts warn of mask and distancing fatigue setting in. (Photo by Aijaz Rahi/AP Photo)

Photo taken on March 30, 2021 shows visitors enjoying pear flowers and orchid in full bloom at Santaishan Forest Park in Suqian, east China's Jiangsu Province. (Photo by Costfoto/Barcroft Media via Getty Images)

A clash has broken out among the police and the protesters on March, 25, 2021 against Indian prime minister Narendra Modi’s upcoming visit in Motijheel, Dhaka, Bangladesh. (Photo by Harun-Or-Rashid/ZUMA Wire/Rex Features/Shutterstock)

LCR Honda IDEMITSU's Japanese rider Takaaki Nakagami crashes in the second MotoGP free practice session of the Portuguese Grand Prix at the Algarve International Circuit in Portimao, on April 16, 2021. (Photo by Patricia de Melo Moreira/AFP Photo)

Spot, a robot with dog-like movements, walks past a dog in Cathedral Square in Erfurt, Germany on April 20, 2021. Security service provider Ciborius, a provider of robotic security solutions with artificial intelligence, presented its artificial employee with high-resolution 360-degree all-round camera, ultra-bright LED light and a light detection system on Domplatz. (Photo by Michael Reichel/dpa)

A girl practices martial arts during a training at a school in Syrian opposition-held village of al-Jeineh, Syria on April 11, 2021. (Photo by Khalil Ashawi/Reuters)