A riot policeman watches as a police vehicle burns in Braamfontein, Johannesburg, South Africa, Tuesday, October 25, 2016. Rioters in South Africa set a police vehicle on fire Tuesday and stoned vehicles near a Johannesburg university that has been the scene of sometimes violent protests by students demanding free education. The violence broke out in streets near the University of the Witwatersrand at around the same time that student protesters met and marched off the campus, South African media reported. (Photo by Yeshiel Panchia/AP Photo)

In this February 14, 2019 photo, a newlywed couple kisses while posing for photos at one of several free sets placed for newlyweds to take cell phone photos of themselves following a mass wedding ceremony on Valentine's Day in Mexico City. Hundreds of couples of all ages, many with their children, gathered to legally tie the knot in a mass ceremony in the capital's Venustiano Carranza neighborhood. (Photo by Rebecca Blackwell/AP Photo)

Specialist Dilip Patel, left, works at his post on the floor of the New York Stock Exchange, Monday, March 9, 2020. The Dow Jones Industrial Average sank 7.8%, its steepest drop since the financial crisis of 2008, as a free-fall in oil prices and worsening fears of fallout from the spreading coronavirus outbreak seize markets. (Photo by Richard Drew/AP Photo)

Grand Blanc junior Sarah Hartwell chants “Get her out!” as more than 100 students, retired teachers and other members of the community march on Monday, May 24, 2021 on the sidewalk along Saginaw Street outside of Grand Blanc High School, protesting Amy Facchinello, a school board member accused of believing in the QAnon conspiracy. About 25 counter-protesters showed to argue that Facchinello was duly elected and has her right to free speech. (Photo by Jake May/AP Photo)

A man takes care of the cats at the Arnamir cat hotel in Jakarta, Indonesia on April 14, 2023. Animal care services can be an option during the holidays when pets are left behind, so that pets are not neglected while their owners are away. The hotel implements free-to-play concept, so that the cats are entrusted and has a comfortable room to stay. The rooms are monitored by a 24-hour surveillance camera. (Photo by Dasril Roszandi/Anadolu Agency via Getty Images)

Five-year-old Julia cuddles a free teddy bear at a toy adoption station in a branch of Dobbies in Wallington, UK on December 4, 2023. Research shows almost half of parents (46%) in Britain plan to spend less on their children’s Christmas presents this year, and 47% believe their child would not mind receiving a preloved toy as a gift. (Photo by Michael Leckie/PA Wire Press Association)

An activist with a painted face symbolizing the count of days spent in captivity attends the Free Azov rally in support of the captured defenders of Mariupol on April 21, 2024 in Kyiv, Ukraine. The participants came out to remind about the Ukrainian soldiers who have been held in Russian captivity for more than two years. (Photo by Yan Dobronosov/Global Images Ukraine via Getty Images)

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)