A picture shows the blood stained floor of a kindergarten following reported shelling in the rebel-held area of Harasta, on the northeastern outskirts of the capital Damascus, on November 6, 2016. At least four children were killed and 19 people injured in the government strike in Harasta, according to the Syrian Observatory for Human Rights. (Photo by Sameer Al-Doumy/AFP Photo)

A man helps a woman with blood on her face after security guards saw her looting in a hotel during a protest demanding the resignation of Haiti's Prime Minister Ariel Henry after weeks of shortages, in Port-au-Prince, Haiti on October 10, 2022. (Photo by Ralph Tedy Erol/Reuters)

A Houthi follower with fake blood on his clothes lies on the ground to represent a victim as others perform a war dance during a ceremony marking the first anniversary of the Houthi movement's takeover of Yemen's capital Sanaa September 21, 2015. (Photo by Khaled Abdullah/Reuters)

A Hindu holy man is reflected on a mirror as he prepares a bowl of vermillion powder for devotees near “Sangam”, the confluence of holy rivers of Ganges, Yamuna and the mythical Saraswati, during the annual traditional fair of Magh Mela in Allahabad, in the northern Indian state of Uttar Pradesh, India, Tuesday, January 6, 2015. Hundreds of thousands of devout Hindus are expected to take holy dips at the confluence during the astronomically auspicious period of over 45 days celebrated as Magh Mela. (Photo by Rajesh Kumar Singh/AP Photo)

A green rosella and a wallaby, known as a Pademelon, eye off as they drink from a water bowl put out for thirsty wild animals at a back-yard in Kayena, in northern Tasmania, 01 February 2019. Australia recorded its hottest month on record in January; it was also the hottest and driest month on record for the Australian island state of Tasmania. (Photo by Barbara Walton/EPA/EFE)

A Thai Marine instructor drinks a cobra's raw blood after killing it as he gives instruction to US Marines and South Korean Marines during jungle survival training as part of the multinational joint military exercise Cobra Gold 2018 at a Force Reconnaissance Battalion camp in the Royal Thai Naval Base, Sattahip district, Chonburi province, Thailand, 19 February 2018. (Photo by Rungroj Yongrit/EPA/EFE)

Thousands of bright yellow silkworm cocoons are dried in huge clay bowls in the village of Hong Ly, northern Vietnam in July 2022. Silk fibres are produced by silkworms when they spin themselves into a cocoon on their journey to becoming a silkmoth. The ultra-soft fibres are harvested from the cocoon in their raw state by being boiled in hot water. (Photo by Prabu Mohan/Solent News)

In a north London hospital, scientists are growing noses, ears and blood vessels in the laboratory in a bold attempt to make body parts using stem cells. It is among several labs around the world, including in the U.S., that are working on the futuristic idea of growing custom-made organs in the lab. (Photo by Matt Dunham/AP Photo)