Medical workers wearing protective gear to protect against coronavirus infection, carry a patient at infectious diseases hospital where patients with coronavirus are treated in St.Petersburg, Russia, Wednesday, June 3, 2020. (Photo by Dmitri Lovetsky/AP Photo)

A hyena stands chained to its handler at a circus in Gabasawa, Kano State, Nigeria, July 27, 2021. Hyenas are often viewed as repulsive and sinister, partly due to their scavenging habits in the wild, but in northern Nigeria some men keep the creatures in their homes, display them at festivals and even use their dung to make remedies. (Photo by Afolabi Sotunde/Reuters)

Group leader Jane Waithageni Kimaru, 60 years old, shows women how to fight off a potential rapist and escape, during a Taekwondo self-defense class for women in the Korogocho slum of Nairobi, Kenya, Thursday, September 16, 2021. (Photo by Brian Inganga/AP Photo)

A woman argues with police officer during a protest in support of jailed opposition leader Alexei Navalny in Ulan-Ude, the regional capital of Buryatia, a region near the Russia-Mongolia border, Russia, Wednesday, April 21, 2021. Navalny's team has called for nationwide protests on Wednesday following reports that the politician's health was deteriorating in prison, where he has been on hunger strike since March 31. Russian authorities have stressed that the demonstrations were not authorized and warned against participating in them. (Photo by Anna Ogorodnik/AP Photo)

A boy with his bike is seen as rainbow appears after a rainfall in Edremit district of Van province in Turkey on July 08, 2020. (Photo by Ozkan Bilgin/Anadolu Agency via Getty Images)

Revelers stained with colored powder cheer during the Holi festival celebrations in Chennai, India, 08 March 2023. Holi, also known as the “Festival Of Colors” is an ancient Indian Hindu festival symbolizing the victory of good over evil and marking the arrival of spring. It is celebrated with joyful gatherings during which revelers cover each other in colored powders. (Photo by Idrees Mohammed/EPA/EFE)

A Palestinian sits among the rubble of buildings destroyed during the Israeli offensive, amid a ceasefire between Israel and Hamas, in Rafah in the southern Gaza Strip on February 4, 2025. (Photo by Hatem Khaled/Reuters)

Thousands of species of amphibians are endangered and hundreds have already disappeared, but in recent years, a team of scientists and conservationists have re-discovered some of these “lost” species and uncovered previously unknown varieties. Here: Miniature glass frog. (Photo by Robin Moore)