Doug Allan / Killer Whales (Orcinus orca) spy-hopping to observe Weddell Seal (Leptonychotes weddellii) in preparation to knock it from the ice by creating a wave. Marguerite Bay, Antarctic Peninsula, summer. Free...

Jeff Rotman / Father and sons observe Caribbean reef shark. {Carcharhinus perezi} Bahamas. Model released. Model released.

Enrique Lopez-Tapia / Tourist guides in mangroves to observe wildlife of the area, Sundarbans National Park, the largest mangrove swamp in the world. UNESCO World Heritage Site. June 2012.

Jeff Rotman / Threadfin Butterflyfish (Chaetodon auriga) diver observing fish caught in Bedouin gill net, Egypt, Red Sea. Model released. October 2002. Model released.

Roland Seitre / Children climbing stairs to observe birds from the Canopy Tower bird observatory. Canal rainforest, Panama City region, 2008. Model released.

Doug Allan / Killer Whale (Orcinus orca) spy-hopping to observe a Crabeater Seal (Lobodon carcinophagus); the whales are in search of Weddell Seals. Marguerite Bay, Antarctic Peninsula, summer. Freeze Frame book p...

Doug Allan / Killer Whale (Orcinus orca) spy-hopping to observe Crabeater Seals (Leptonychotes weddelli); the whales are in search of Weddell Seals. Marguerite Bay, Antarctic Peninsula, summer. Freeze Frame book p...

Jeff Rotman / Divers observe and interact with Southern stingrays (Dasyatis americana) Bahamas, Caribbean Sea Model released.

Terry Whittaker / 2020VISION / Volunteer Warden, Ray Sykes, using night vision optics to observe the Manton Bay osprey pair at night, Rutland Water, Rutland, UK, April 2011. During the incubation period the Osprey nest is observed...

Florian Möllers / Pedestrian and cyclist observe Wild boars (Sus scrofa) on the curb of Argentinische Allee, Berlin, Germany, March 2007

Michael Hutchinson / Tourists observe Iguazu waterfalls, Iguacu National Park, Brazil

Michael Hutchinson / Tourists observe the Perito Moreno Glacier from a vantage point, Los Glaciares National Park, Argentina February 2009

Suzi Eszterhas / California Sea Lion (Zalophus californianus) visitors observe haul out, Channel Islands National Park, San Miguel, California

Ingo Arndt / Researchers using diving robot to observe sea ice from below, Ispol expedition, Weddell Sea, Antarctica

Tim Fitzharris / Birdwatcher using telescope to observe shorebirds, Florida

Flip Nicklin / Researchers in boat observe and photograph Humpback Whale (Megaptera novaeangliae) tail, Alaska

Dietmar Nill / Birdwatchers observe Common crane (Grus grus). Hornborga Sea, Sweden, Scandinavia, Europe

Paul D Stewart / Portrait of Athanasius Kircher, Jesuit scholar 1602-1680, coloured copper engraving of the author from Mundus Subterraneus (1664). Kircher worked and published across a remarkable range of fields, and...

Yva Momatiuk & John Eastcott / Cheetah (Acinonyx jubatus) adult female, on hood of vehicle to observe distant antelope, tourists watching, Masai Mara National Reserve, Kenya