Jeff Foott / Large number of tourists on overcrowded hiking trail, Delicate Arch, Arches National Park, Utah

Jeff Foott / Large number of tourists on overcrowded hiking trail, Delicate Arch, Arches National Park, Utah

Ashley Cooper / Syrian migrants, refugees fleeing the war, Lesvos Island, Greece. September 2015.

Ashley Cooper / Modern cable car system in La Paz, Bolivia. October 2015.

Franco Banfi / Shoal of Bigeye trevally (Caranx sexfasciatus) Tulamben, Bali Island, Indonesia, Pacific Ocean

Loic Poidevin / Bengal tiger (Panthera tigris tigris) walking nervously between tourist vehicles, harassment from ecotourism, Ranthambhore National Park, Rajasthan, India, March 2012

Jeff Foott / Large number of tourists on overcrowded hiking trail under North Window Arch, Arches National Park, Utah

Maxime Aliaga / Lion (Panthera leo) male, standing in shade completely surrounded by tourist vehicles, with tourists taking photographs with mobile phones, Masai Mara, Kenya. october, 2021.

Fernando Faciole / Greater rhea (Rhea americana), with five chicks, trying to drink at mud pool overcrowded with caimans due to ongoing drought. Transpantaneira Highway, Mato Grosso, Brazil.

Maxime Aliaga / Two Lions (Panthera leo) rubbing heads closely surrounded by a crowd of tourist vehicles, Masai Mara National Reserve, Kenya.

Will Watson / African lion (Panthera leo) pride watched by tourists in safari vehicles as viewed from hot air balloon, Masai Mara National Park, Kenya, January.