Irwan bathes a domesticated crocodile at his house in Bogor, Indonesia on January 22, 2018. Irwan found it as a baby and now it has been living with Irwans family for 20 years. Indonesia is known as a hotbed of exotic pet domestication and trade. People have been known to keep endangered animals such as slow lorises, eagles and pangolins, angering conservationists and animal rights activists. (Photo by Eko Siswono Toyudho/Anadolu Agency/Getty Images)

David Yeo’s photography places naturally small species alongside animals that have been selectively bred to be tiny and cute. Here: “The most difficult aspect of this shoot was to get each African pygmy dormouse – also known as micro squirrels – on to a separate camera. Once in place, they needed to remain still long enough to get them both in the frame and looking at me. Often solitary, they naturally wanted to move away”. (Photo by David Yeo/Leica Studio Mayfair/The Guardian)

A Sphynx cat stares sitting on its owner's lap during an international feline beauty competition in Bucharest, Romania, Saturday, April 14, 2018. More than 250 cats take part in the two-day competition in the Romanian capital. (Photo by Vadim Ghirda/AP Photo)

A baby otter has its first health checkup at Chester zoo, England on May 2, 2018. It was among five pups being weighed and microchipped. (Photo by Peter Byrne/PA Wire)

A dog sits in a plastic basin filled with water in Taipei, Taiwan, 05 May 2018. Betel nut seller Mr Luo, the dog's owner, said he puts his dog Ah Dai (Stupid Guy) in the water-filled basin whenever the weather get hot. Luo has a dozen pairs of glasses for Ah Dai, so the dog wears different glasses every day and many tourists take photos of Ah Dai. (Photo by David Chang/EPA/EFE)

A tufted puffin is seen in Kamchatka Territory, Russia on July 17, 2018. (Photo by Yuri Smityuk/TASS)

A chimpanzee in the Osnabrück Zoo in Lower Saxony makes contact with a small zoo visitor sitting in front of a pane on September 1, 2020. The two males Lobo and Lome moved from Leipzig Zoo to Osnabrück Zoo to strengthen the social structure of the existing group. (Photo by Friso Gentsch/dpa)

A photographer with a hidden camera took 2,500 photos before this elusive badger was ready for his close-up in September 2020. (Photo by Andy Swinden/BNPS)