Split-view of a killer whale at sunrise off the coast of Northern Norway. At least half of the world’s killer whale populations are doomed to extinction due to pollution of the oceans, a new study says. (Photo by Audun Rikardsen/Science)

Yuandudu, a camera-shy panda cub, covers her eyes in Beauval ZooParc in France in November 2021. The three-month-old and her twin are fed once each by their mother every day, taking 150-200g of milk per feed. In between they have one bottle feed per day from the specially trained keepers who were sent from China to supervise their birth and early care. (Photo by Eric Baccega/Naturepl.com/LDY Agency)

Two monitor lizards wrestle at Singapore Botanic Gardens on February 7, 2022. (Photo by Xinhua News Agency/Rex Features/Shutterstock)

Two young deer seem to look bashfully at the camera after a playfight in Bushy Park, London early February 2023. (Photo by Lesley Marshall/South West News Service)

A tern chased away a ghost crab that was threatening its chicks at a beach near Fort Myers, Florida in the last decade of June 2023, before feeding them with freshly caught fish. (Photo by Judy Rogero/Solent News)

People attend in costume the 2022 New York Comic Con, at the Jacob Javits Convention Center in Manhattan in New York City, New York, U.S., October 6, 2022. (Photo by Brendan McDermid/Reuters)

In this undated photo released by Indonesian Ministry of Environment and Forestry, a newly born Sumatran rhino calf walks in its enclosure at Sumatran Rhino Sanctuary at Way Kambas National Park, Indonesia. The critically endangered Sumatran rhino was born on Sumatra Island Saturday, November 25, 2023, the second Sumatran rhino born in the country this year and a welcome addition to a species that currently numbers fewer than 50 animals. (Photo by Indonesian Ministry of Environment and Forestry via AP Photo)

A tree frog uses a leaf as an umbrella in pouring rain in Karacabey floodplain near the city of Bursa, Turkey in the first decade of June 2023. (Photo by Savas Sener/Solent News & Photo Agency)