Francois Savigny / Old African elephant bull in 'must', period of sexual dominance when he wil mate with females in his home range, Etosha National Park, S. Africa

Philip Stephen / Rough weather on the seashore at Buchan Ness Lighthouse, Scotland, January 2014. All non-editorial uses must be cleared individually.

Flip Nicklin / Humpback Whale (Megaptera novaeangliae) males interacting, Maui, Hawaii - notice must accompany publication; photo obtained under NMFS permit 13846

Flip Nicklin / Humpback Whale (Megaptera novaeangliae), two males swimming together, Maui, Hawaii - notice must accompany publication; photo obtained under NMFS permit 13846

Paul D Stewart / Skull of Moa or Dinornis discovered by Mr. Walter Mantell on the North Island of New Zealand. Plate with later tinting, from Gideom Mantell's petrifactions and their teachings (1851) published by Henr...

Rick Tomlinson / SY "Adele", 180 foot Hoek Design, at the Superyacht Cup Palma, October 2005 Non editorial uses must be cleared individually.

Rick Tomlinson / SY "Adele", 180 foot Hoek Design, at the Superyacht Cup Palma, October 2005 Non editorial uses must be cleared individually.

Rick Tomlinson / SY "Adele", 180 foot Hoek Design, at the Superyacht Cup Palma, October 2005 Non editorial uses must be cleared individually.

Rick Tomlinson / Aerial view of SY "Adele", 180 foot Hoek Design, underway just off the Antigua coast, January 2006. Non editorial uses must be cleared individually.

Rick Tomlinson / Aerial view, taken from the mast, of SY "Adele"'s bow in the bay of an iceberg, Portal Point, Reclus Pennisula, Antarctica, January 2007 Non editorial uses must be cleared individually.

Alex Mustard / 2020VISION / View up through tidepool of 2020Vision young photographer, Bertie Gregory, Falmouth, Cornwall, UK, July 2011. Model released. Did you know? Life isnt easy in a rock pool! Animals here must deal with c...

Juergen Freund / Blue sea star on massive Boulder coral (Gardineroseris planulata) North Sulawesi, Indonesia. This coral species is normally found from the Red Sea to Central America, and is relatively uncommon in the...

Flip Nicklin / Humpback Whale (Megaptera novaeangliae) breaching, Humpback Whale National Marine Sanctuary, Maui, Hawaii - notice must accompany publication; photo obtained under NMFS permit 0753-1599

Flip Nicklin / Humpback Whale (Megaptera novaeangliae), Humpback Whale National Marine Sanctuary, Maui, Hawaii - notice must accompany publication; photo obtained under NMFS permit 0753-1599

Mark Moffett / Leafcutter Ant (Atta cephalotes) worker carries leaf with its jaws full, workers carrying leaves must rely on a special cast of smaller ants riding on the leaves to defend against Phorid fly (Phoridae...

Norbert Wu / Orca (Orcinus orca) pod surfacing in icebreaker channel, must find open pockets of water to breathe, McMurdo Sound, Antarctica

Flip Nicklin / Humpback Whale (Megaptera novaeangliae) friendly singer approaches research boat, joiner in background, Maui, Hawaii - notice must accompany publication; photo obtained under NMFS permit 987

Flip Nicklin / Humpback Whale (Megaptera novaeangliae) friendly singer, Maui, Hawaii - notice must accompany publication; photo obtained under NMFS permit 987

Flip Nicklin / Humpback Whale (Megaptera novaeangliae) breaching, Maui, Hawaii - notice must accompany publication; photo obtained under NMFS permit 987

Flip Nicklin / Humpback Whale (Megaptera novaeangliae) mother and calf, Maui, Hawaii - notice must accompany publication; photo obtained under NMFS permit 987

Flip Nicklin / Humpback Whale (Megaptera novaeangliae) singer, Maui, Hawaii - notice must accompany publication; photo obtained under NMFS permit 987

Flip Nicklin / Humpback Whale (Megaptera novaeangliae) cow and calf, Maui, Hawaii - notice must accompany publication; photo obtained under NMFS permit 987

Flip Nicklin / Humpback Whale (Megaptera novaeangliae) friendly mother and calf, Maui, Hawaii - notice must accompany publication; photo obtained under NMFS permit 987

Flip Nicklin / Humpback Whale (Megaptera novaeangliae) friendly singer approaches hydrophone, Maui, Hawaii - notice must accompany publication; photo obtained under NMFS permit 987

Flip Nicklin / Humpback Whale (Megaptera novaeangliae) eye of singer, Maui, Hawaii - notice must accompany publication; photo obtained under NMFS permit 987

Hermann Brehm / African elephant male in musth charging {Loxodonta africana} Botswana

Phil Savoie / Milky way seen through ruined archway of Llanthony Priory. Brecon Beacons National Park, Monmouthshire, Wales, UK, August 2017. EDITORIAL USE ONLY. ALL OTHER USES MUST BE CLEARED.

Pal Hermansen / Woman cleaning of eider down, from Common eider ducks (Somateria mollissima) all small particles must be removed to ensure long duration of the down product. Lanan Island, Vegoyan UNESCO World Heritag...

Francois Savigny / Old African elephant bull in 'must', period of sexual dominance when he will mate with receptive females in his home range. Etosha National Park

Jeff Rotman / Lobsterman holds up American lobster (Homarus americanus) that is 9 pounds, it must be thrown back as it is over the maximum size, Yarmouth Maine, USA October. Model released.

Jeff Rotman / Lobsterman holds up American lobster (Homarus americanus) that is 9 pounds, it must be thrown back as it is over the maximum size, Yarmouth Maine, USA October. Model released.

Laurent Geslin / Sign for Ile aux Aigrettes Nature Reserve, explaining that all visitors must have permission to visit the island. Mauritus, July 2012.

Pascal Kobeh / A board at the entrance of the cenote that illustrates the safety measures that every diver must follow, Cenote Car Wash or Aktun Ha, Yucatan Peninsula, Mexico

Enrique Lopez-Tapia / Castrated Zebu bulls which will be used in the Hamer Jumping of the bulls ceremony. This Hamer ceremony is a a right of passage into manhood for all young Hamer. Each naked boy taking part must leap d...

Enrique Lopez-Tapia / Scars on back of woman whipped during Hamer Jumping of the Bulls ceremony. This Hamer ceremony is a a right of passage into manhood for all young Hamer. Each naked boy taking part must leap down the l...

Enrique Lopez-Tapia / Jumping of the bulls Hamer ceremony. This Hamer ceremony is a a right of passage into manhood for all young Hamer. Each naked boy taking part must leap down the line of bulls, jumping on the animals f...

Enrique Lopez-Tapia / Jumping of the bulls Hamer ceremony. This Hamer ceremony is a a right of passage into manhood for all young Hamer. Each naked boy taking part must leap down the line of bulls, jumping on the animals f...

Christophe Courteau / Fishing vessel coming in to Guilvinec Port at sunset, Finistere, Brittany, France. December. All non-editorial uses must be cleared individually.

Onne van der Wal / Three classic 6 Meters yachts, racing during the Classic Yacht Regatta in Newport, Rhode Island, USA, August 2013. All non-editorial uses must be cleared individually.

Onne van der Wal / 'Spartan', a 72 foot Herreschoff built in 1913, and her crew racing during the Classic Yacht Regatta, Newport, Rhode Island, USA, August 2013. All non-editorial uses must be cleared individual...

Onne van der Wal / Start of the Classic Yacht Regatta, Newport, Rhode Island, USA, August 2013. All non-editorial uses must be cleared individually.

Onne van der Wal / 'Spartan' hoisting the Whisker pole during the New York Yacht Club Annual Regatta, New York, USA, June 2013. All non-editorial uses must be cleared individually.

Onne van der Wal / 6 metre yacht passing Castle Hill Lighthouse, which marks the entrance to Narragansett Bay, during the Classic Yacht Regatta, Newport, Rhode Island, USA, August 2013. All non-editorial uses must be cl...

Onne van der Wal / 12 metre yachts, 'Northern Light' and 'Gleam', racing on Narragansett Bay during the Classic Yacht Regatta, Newport, Rhode Island, USA, August 2013. All non-editorial uses must be clea...

Onne van der Wal / 'Bolero' racing in the Classic Yacht Regatta, Newport, Rhode Island, USA, August 2013. All non-editorial uses must be cleared individually.

Onne van der Wal / 'Rogue' rounds Beavertail Light on Conanicut Island, Classic Yacht Regatta, Newport, Rhode Island, USA. August 2013. All non-editorial uses must be cleared individually.

Onne van der Wal / Classic Yachts 'Fortune' and 'Black Watch' racing during the Classic Yacht Regatta, Newport, Rhode Island, USA, August 2013. All non-editorial uses must be cleared individually.

Onne van der Wal / 'Bolero' and 'Black Watch' crossing tacks during the Classic Yacht Regatta, Newport, Rhode Island, USA, August 2013. All non-editorial uses must be cleared individually.

Onne van der Wal / 'Bolero' and 'Black Watch' crossing tacks during the Classic Yacht Regatta, Newport, Rhode Island, USA, August 2013. All non-editorial uses must be cleared individually.

Onne van der Wal / 'Spartan', a 72 foot Herreschoff, built in 1913, competing in the Classic Yacht Regatta, Newport, Rhode Island, USA, August 2013. All non-editorial uses must be cleared individually.

Onne van der Wal / 'Spartan', a 72 foot Herreschoff, built in 1913, rounding Beavertail Light, during the Classic Yacht Regatta, Newport, Rhode Island, USA, August 2013. All non-editorial uses must be cleared in...

Onne van der Wal / 'Bolero' with her crew during the Classic Yacht Regatta, Newport, Rhode Island, USA, August 2013. All non-editorial uses must be cleared individually.

Onne van der Wal / 'Bolero' with her crew during the Classic Yacht Regatta, Newport, Rhode Island, USA, August 2013. All non-editorial uses must be cleared individually.

Onne van der Wal / 'Spartan', a 72 foot Herreschoff built in 1913, and her crew racing during the Classic Yacht Regatta, Newport, Rhode Island, USA, August 2013. All non-editorial uses must be cleared individual...

Onne van der Wal / 'Spartan', a 72 foot Herreschoff, built in 1913, competing in the Classic Yacht Regatta, Newport, Rhode Island, USA, August 2013. All non-editorial uses must be cleared individually.

Onne van der Wal / Several classics at the start of the Classic Yacht Regatta, Newport, Rhode Island, USA, August 2013. All non-editorial uses must be cleared individually.

Onne van der Wal / 15 square metre yacht passing Castle Hill lighthouse, during the Classic Yacht Regatta, Newport, Rhode Island, USA, August 2013. All non-editorial uses must be cleared individually.

Onne van der Wal / 'Victory 83', 'Courageous' and 'Intrepid' racing downwind with spinnakers up, New York Yacht Club Annual Regatta, New York, USA, June 2013. All non-editorial uses must be clear...

Onne van der Wal / 'Adela' yacht running downwind, during the St. Barth's Bucket 2013, Leeward Islands, West Indies, Caribbean, February 2013. All non-editorial uses must be cleared individually.

Onne van der Wal / 12 metre yachts 'Laura', 'Victory 83', and 'New Zealand' during the New York Yacht Club Annual Regatta, New York, USA, June 2013. All non-editorial uses must be cleared individ...

Onne van der Wal / 'Courageous', 'Victory 83' and 'Intrepid' at the start of the New York Yacht Club Annual Regatta, New York, USA, June 2013. All non-editorial uses must be cleared individually.

Onne van der Wal / 'Intrepid', 'Victory 83', and 'Courageous', the classic 12 metre yachts, racing against each other during the New York Yacht Club Annual Regatta, New York, USA, June 2013. All...

Onne van der Wal / 'Nefertiti' sailing near the Newport Bridge, New York Yacht Club Annual Regatta, New York, USA, 2013. All non-editorial uses must be cleared individually.

Onne van der Wal / 'Adela' yacht on the wind, with spinnaker up, during the St. Barth's Bucket 2013, Leeward Islands, West Indies, Caribbean, February 2013. All non-editorial uses must be cleared individuall...

Onne van der Wal / 'Adela' yacht on the wind, with spinnaker up, during the St. Barth's Bucket 2013, Leeward Islands, West Indies, Caribbean, February 2013. All non-editorial uses must be cleared individuall...

Philip Stephen / Pelagic fishing vessel 'Challenge' approaching Peterhead Harbour in rough weather, Aberdeenshire, Scotland. January 2014. All non-editorial uses must be cleared individually.

Onne van der Wal / Yachts racing at dusk in the Sydney Harbor in Sydney, New South Wales, Australia, November 2012. All non-editorial uses must be cleared individually.

Onne van der Wal / Yachts race at dusk in Sydney Harbour, New South Wales, Australia, November 2012. All non-editorial uses must be cleared individually.

Onne van der Wal / Yacht sailing in Sydney Harbour, New South Wales, Australia, November 2012. All non-editorial uses must be cleared individually.

Onne van der Wal / Yachts racing in the Sydney Harbor, New South Wales, Australia, November 2012. All non-editorial uses must be cleared individually.

Onne van der Wal / Two yachts racing in the Sydney Harbor in Sydney, New South Wales, Australia, November 2012. All non-editorial uses must be cleared individually.

Onne van der Wal / Two men relaxing on a luxury yacht in the Sydney Harbour, New South Wales, Australia, October 2012. All non-editorial uses must be cleared individually.

Onne van der Wal / Sailboats with spinnakers out, racing in the Sydney Harbour, New South Wales, Australia, October 2012. All non-editorial uses must be cleared individually.

Onne van der Wal / Tourists walking round the Sydney Opera House at dusk, New South Wales, Australia, November 2012. All non-editorial uses must be cleared individually.

Onne van der Wal / Sail boat sailing in the choppy waters of the Sydney Harbour, New South Wales, Australia, October 2012. All non-editorial uses must be cleared individually.

Onne van der Wal / Sailboats with spinnakers out, racing in the Sydney Harbour, New South Wales, Australia, October 2012. All non-editorial uses must be cleared individually.

Onne van der Wal / Luxury yacht sailing at dusk in the Sydney Harbour, New South Wales, Australia, October 2012. All non-editorial uses must be cleared individually.

Onne van der Wal / Yacht sailing in front of the Sydney Opera House, Sydney Harbour, New South Wales, Australia, October 2012. All non-editorial uses must be cleared individually.

Onne van der Wal / Sailors onboard a yacht sailing in the Sydney Harbour, New South Wales, Australia, November 2012. All non-editorial uses must be cleared individually.

Onne van der Wal / Sailboats with spinnakers out, racing in the Sydney Harbour, New South Wales, Australia, October 2012. All non-editorial uses must be cleared individually.

Onne van der Wal / Sail boats racing in the Sydney Harbour, New South Wales, Australia, October 2012. All non-editorial uses must be cleared individually.

Onne van der Wal / Sailboats racing in the Sydney Harbor, New South Wales, Australia, November 2012. All non-editorial uses must be cleared individually.

Onne van der Wal / Boom of luxury yacht sailing at dusk in the Sydney Harbour, New South Wales, Australia, October 2012. All non-editorial uses must be cleared individually.

Onne van der Wal / Sail boats racing around a lighthouse in the Sydney Harbour, New South Wales, Australia, October 2012. All non-editorial uses must be cleared individually.

Onne van der Wal / Sailboat passing a ferry in Sydney Harbour, New South Wales, Australia, October 2012. All non-editorial uses must be cleared individually.

Onne van der Wal / Yacht sailing in Sydney Harbour at dusk, New South Wales, Australia, November 2012. All non-editorial uses must be cleared individually.

Onne van der Wal / Yacht racing at dusk in Sydney Harbour, New South Wales, Australia, November 2012. All non-editorial uses must be cleared individually.

Onne van der Wal / Sailboats racing in the Sydney Harbour, New South Wales, Australia, October 2012. All non-editorial uses must be cleared individually.

Onne van der Wal / Yacht sailing past a lighthouse in front of the Harbour Bridge in Sydney, New South Wales, Australia, November 2012. All non-editorial uses must be cleared individually.

Onne van der Wal / Small sail boats racing in the Sydney Harbour, New South Wales, Australia, November 2012. All non-editorial uses must be cleared individually.

Onne van der Wal / Yacht sailing in front of the Sydney Opera House, Sydney Harbour, New South Wales, Australia, October 2012. All non-editorial uses must be cleared individually.

Onne van der Wal / Yacht sailing past the Sydney Opera House at dusk, November 2012. All non-editorial uses must be cleared individually.

Onne van der Wal / Sailboats racing past a ferry in Sydney Harbour, New South Wales, Australia, October 2012. All non-editorial uses must be cleared individually.

Onne van der Wal / Sloop racing in Sydney Harbour with RIB nearby, New South Wales, Australia, October 2012. All non-editorial uses must be cleared individually.

Onne van der Wal / Yacht sailing past the Sydney Opera House at dusk, New South Wales, Australia, November 2012. All non-editorial uses must be cleared individually.

Onne van der Wal / Sail boats racing in the Sydney Harbour, New South Wales, Australia, October 2012. All non-editorial uses must be cleared individually.