Will Watson / View of Worcester Cathedral with flooded road in the foreground, Worcester, England, UK, February 2014.
Will Watson / View of floodwater outside the Severn View Hotel, with cyclists, Worcester, England, UK, February 2014.
Christophe Courteau / Tourists with a guide on an ecotourism trekking holiday, Svalbard, Norway, June, 2012. Model released.
Christophe Courteau / Landscape photographer taking a picture of the view across the Liefdefjorden, towards the Monacobreen Glacier, Spitzbergen, Svalbard, Norway, June, 2012. Model released.
Sandesh Kadur / Group of veterinary surgeons around a tranquilized Sloth bear (Melursus ursinus) at the Wildlife SOS Rehabilitation Centre, Bannerghatta National Park, Karnataka, India, 2009.
Juan Carlos Munoz / Toursists in a boat moving up the River Kinabatangan through lowland rainforest, Sabah, Malaysia, Borneo.
Merryn Thomas / Viewing platform on the summit of the Schilthorn (2,970m), Bernese Oberland, Switzerland, June 2012.
Visuals Unlimited / Moon jellyfish (Aurita aurita) and snorkeler, Jellyfish Lake, Micronesia, Palau
Visuals Unlimited / Government officials and locals keeping eyes on Hawaiian monk seal (Monachus schauinslandi) basking at boat ramp, young male, critically endangered, Honokohau Harbor, Kona Coast, Big Island, Hawaii, P...
Visuals Unlimited / Person holding a stick in the open mouth of a Namib Horned Adder (Bitis caudalis) to show the fangs of the venomous viper, Namib-Naukluft National Park, Namibia
Flip Nicklin / Sperm Whale (Physeter macrocephalus) researchers Steve Dawson and Elizabeth Slooten using hydrophones to listen to whale vocalizations, New Zealand
Kevin Schafer / Northern Elephant Seal (Mirounga angustirostris) researcher marking large bull, Farallon Islands, California
Kevin Schafer / Harp Seal (Phoca groenlandicus) pup and tourist, Magdalen Islands, Canada
Luciano Candisani / Black-browed Albatross (Thalassarche melanophrys) researcher Tatiana Neves in nesting colony, Steeple Jason Island, Falkland Islands
Luciano Candisani / Lemon Shark (Negaprion acutidens) young being released by biologist of Dr. Gruber's research team, Rocas Atoll, Brazil
Luciano Candisani / Antillean Manatee (Trichechus manatus manatus) in marine mammal research centre with divers taking measurments, Itamaraca Island, Pernambuco, Brazil
Luciano Candisani / Antillean Manatee (Trichechus manatus manatus) in marine mammal research centre, Itamaraca Island, Pernambuco, Brazil
Luciano Candisani / Antillean Manatee (Trichechus manatus manatus) in a mangrove enclosure for research during low tide, Mamanguape Estuary, Brazil