Sümi women gesture as they line up to perform a traditional Sümi rice pounding folk song called “Thishole” during Western Sumi Torimi Hoho Silver Jubilee at Thilixü Village in Chumoukedima district, India north eastern state of Nagaland on June 7, 2023. Altogether 1400 Sülimis perform their traditional rice pounding folk song to mark their 25th Anniversary. (Photo by Caisii Mao/Rex Features/Shutterstock)

Visitors enjoy a camel ride at Sea View beach in Karachi on June 16, 2023, after Cyclone Biparjoy made landfall. More than 180,000 people in the Indian state of Gujarat and Pakistan's neighbouring Sindh province fled the path of Biparjoy – which means “disaster” in Bengali – before it made landfall on June 15 evening. (Photo by Asif Hassan/AFP Photo)

A man is reflected in the water as he sleeps on the street in Kathmandu, Nepal, 27 June 2023. Despite the Meteorological Forecasting Division of Nepal already announcing the onset of the monsoon season in the country on June 14, 2023, the monsoon rainfall has not been significantly active yet. (Photo by Narendra Shrestha/EPA)

Rick Sorenson, owner of the Rio Ramaza Marina, wades in the Sacramento River after securing an old paddlewheel boat on his property as the river makes its way up the levee on Garden Highway in Sacramento, Calif., Monday, January 9, 2017. (Photo by Hector Amezcua/The Sacramento Bee via AP Photo)

Somalis remove the body of a man killed in a blast in the capital Mogadishu, Somalia Saturday, October 14, 2017. A huge explosion from a truck bomb has killed at least 20 people in Somalia's capital, police said Saturday, as shaken residents called it the most powerful blast they'd heard in years. (Photo by Farah Abdi Warsameh/AP Photo)

Behaviour: Mammals category. Giant Gathering by Tony Wu, USA. Dozens of sperm whales mingled noisily off Sri Lanka’s northeast coast, stacked as far down as Tony could see. This was a congregation of dozens of social units, like a gathering of the clans. Aggregations like this could be a critical part of the whales’ rich social lives but are rarely reported. Some two thirds of the population was wiped out before commercial whaling was banned in 1986. This kind of major gathering could be “a sign that populations are recovering”, says Tony. (Photo by Tony Wu/Wildlife Photographer of the Year 2017)

Two brown bears bathe in their enclosure at the Wildpark Poing in Poing, Germany, Wednesday, August 8, 2018. (Photo by Lino Mirgeler/Deutsche Presse-Agentur via AP Photo)

The Aurora Borealis (Northern Lights) is seen in the sky in Ivalo of Lapland, Finland on September 27, 2019. (Photo by Alexander Kuznetsov/Reuters)