Pistachio, a puppy who was born with green fur, is seen on the day he was born on a farm on the island of Sardinia, in Pattada, Italy, October 9, 2020. (Photo by Cristian Mallocci/Handout via Reuters)

A protester is taken away by police during an electoral campaign closing rally of Spain's far-right party VOX in Madrid, Spain on April 26, 2019. (Photo by Juan Medina/Reuters)

Spain's Lidia Rodriguez, Spain's Marta Garcia and Spain's Raquel Roy compete in the Kata team female final during the 24th Karate World Championships at the WiZink center in Madrid on November 11, 2018. (Photo by Javier Soriano/AFP Photo)

Spain’s fans react after their team lost the match against Italy while watching the match in a bar during the Euro 2020 soccer championship semifinal match between Italy and Spain, in Pamplona, northern Spain, Tuesday, July 6, 2021. (Photo by Alvaro Barrientos/AP Photo)

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)

Jo-Anne McArthur’s book of photographs puts the spotlight on ethics of zoos around the world. Accompanied by essays by Born Free Foundation’s Virginia McKenna and philosopher Lori Gruen, the images and stories are also shared online through “A Year of Captivity”. Here: Asian Elephant, Denmark, 2016. (Photo by Jo-Anne McArthur/Born Free Foundation/The Guardian)