Hundreds of people from a range of NGOs and campaign groups protest to demand the immediate restoration of nature at DEFRA – Department for Environment Food & Rural Affairs on September 28, 2023 in London, England. The 2023 State of Nature Report revealed that approximately one in six species in Great Britain, including turtle doves and hazel dormice, are at risk of extinction, citing climate change, intensive farming, and pollution as major threats, with a 19% average decline in monitored plant and animal populations since 1970. (Photo by Guy Smallman/Getty Images)

A girl applies henna patterns on her hands while waiting for customers, ahead of Eid al-Fitr celebrations, in Karachi, Pakistan on April 9, 2024. (Photo by Akhtar Soomro/Reuters)

A tourist takes a selfie with pelicans on the bench in St. James's Park in Westminster, central London on June 19, 2024. (Photo by Marcin Nowak/London News Pictures)

Lake Baikal is the world's oldest lake, at 25 million years (possibly older), and deepest, averaging 744.4 metres (2,442 ft).

Located in the south of the Russian region of Siberia, between Irkutsk Oblast to the northwest and the Buryat Republic to the southeast, it is the most voluminous freshwater lake in the world, containing roughly 20% of the world's unfrozen surface fresh water.

A brilliant sunset makes for a fun silhouette picture by jumping between sand bars at Shi Shi Beach on the Olympic Peninsula Friday July 17, 2015. (Photo by Bettina Hansen/The Seattle Times)

Russian policemen detain participants of an unauthorized “Russian March 2020: For freedom and justice! We go out to say that Russian lives matter” organised by Russian nationalists on the National Unity Day in Moscow, Russia, 04 November 2020. Russian nationalists demand freedom for political prisoners in prisons and a fair investigation into the deaths of political prisoners, including representatives of radical movements who were killed during detention or found dead in places of detention. (Photo by Sergei Ilnitsky/EPA/EFE)

A restaurant worker wearing a mask cleans the windows as the restaurant reopens amid the COVID-19 pandemic in Sao Paulo, Brazil, Monday, July 6, 2020. Bars, restaurants and beauty salons were allowed to re-open Monday after over three months of quarantine, and are required to observe preventative measures and reduced operating hours only during the day. (Photo by Andre Penner/AP Photo)