These two young siblings appear to cling on to a tree for dear life and even hold hands as they learn the ropes of climbing, on June 25, 2013. (Photo by Tim Fitzharris/Minden/Solent)

“Himalayan Dog”. This dog just appeared out of nowhere and followed us for an entire week during our trekking trip in the Himalayan outback. He always used to sleep in front of our tent and guarded us in the nights. When I decided to get up at 4 a.m. to climb the next 5000 m peak for sunrise he accompanied me as well. On the top he was sitting for the entire 30 minutes on this place looking straight into the countryside. Photo location: Ladakh, India. (Photo and caption by Sebastian Wahlhuetter/National Geographic Photo Contest)

India's yoga guru Baba Ramdev performs yoga on the banks of the river Ganges ahead of International Yoga day, in the northern town of Haridwar, India, June 19, 2020. (Photo by Sunil Kataria/Reuters)

Two children swim on the flood water after a widespread flash flood at Nalitabari sub district in Sherpur district, Bangladesh, 08 October 2024. According to Bangladesh Water Development Board (BWDB) officials, at least 50,000 people remain stranded in five sub districts in Sherpur despite flood conditions improving. (Photo by EPA/EFE/Stringer)

A boat transports Pirarucu fish to a processing ship, in the San Raimundo settlement lake, in Carauari, Brazil, Tuesday, September 6, 2022, published November 3. The giant fish not so long ago nearly vanished. The illegal and unsustainable fishing left river and Indigenous communities struggling to catch their staple food. (Photo by Jorge Saenz/AP Photo)

Photographer Niki Feijen for his new book, “Frozen”, photographed several abandoned buildings across Europe. Capturing their haunting beauty from years of decay. Here: Paperflow – Room inside a former monastery. (Photo by Niki Feijen)

Located at the foot of the Rocky Mountains on the North Saskatchewan River, the rare phenomenon occurs each winter in the man-made lake. Photo: Ice bubbles in Abraham Lake. (Photo by Chip Phillips/Rex Features)

Cooler temperatures begin this week as a polar vortex brings much colder conditions with the chance of snow for Snowdonia, Ogwen Valley, North Wales on 22nd October 2018. The Ogwen Valley and Tryfan Mountain looking splendid in the Autumn sunrise. (Photo by DGDImages/Alamy Live News)