Nick Upton / Harvest mouse (Micromys minutus) cleaning its nose on Common hogweed (Heracleum sphondylium) flowerhead after release, Moulton, Northampton, UK, June.

Alex Mustard / A diver explores Silfra Canyon, a deep fault filled with fresh water in the rift valley between the Eurasian and American tectonic plates at Thingvellir National Park, Iceland. May 2011. In this phot...

Franco Banfi / Scuba diver exploring El Eden cenote. Quintana Roo, Yucatan Peninsula, Mexico.

Franco Banfi / Diver exploring around an iceberg. Tasiilaq, East Greenland. April, 2018. Ocean Photographer of the Year 2023 - Third place Adventure category.

Claudio Contreras / Caribbean Flamingo (Phoenicopterus ruber) chick age 5 days, walking around nest, breeding colony, Ria Lagartos Biosphere Reserve, Yucatan Peninsula, Mexico, June, Finalist in the Portfolio Category of...

Alex Mustard / California sea lion (Zalophus californianus) adult female swimming through sunbeams in an underwater cave. Los Isotes, La Paz, Mexico. Sea of Cortez, East Pacific Ocean.

Pete Oxford / San Lucas marsupial frog (Gastrotheca pseustes) captive, occurs in Ecuadorian Andes.

Brent Stephenson / Young Polar bear (Ursus maritimus) walking across melting sea ice, Scott Inlet, Baffin Island, Canadian Arctic, August. Vulnerable species.

Adrian Davies / Rainforest canopy walkway, Sabah, Borneo, September 2015.

Claudio Contreras / Mesoamerican slider turtle / terrapin (Trachemys scripta venusta) in sinkhole, Cenote Carwash, near Tulum, Yucatan Peninsula, Mexico, January

Juan Carlos Munoz / Tourist paddling among mangroves in canoe, Puerto Jimenez, Golfo Dulce, Osa Peninsula, Costa Rica.

Juan Carlos Munoz / People exploring underground lakes via rigid inflatable boat, Cross Cave (Krizna jama) under Cross Mountain, Green Karst, Slovenia, October 2014.