Alex Hyde / Southern Elephant Seal bull (Mirounga leonina) close up portrait, King Haakon Bay, South Georgia. November.
01279821
Ingo Arndt / Antarctic Fur Seal (Arctocephalus gazella) bull on land, Stromness Bay, South Georgia Island, Southern Ocean, Antarctic Convergence, November 2008
01529763
Wim van den Heever / South African fur seal (Arctocephalus pusillus pusillus) bull breaking apart octopus. False Bay, Cape Town, South Africa.
01404967
Steven Kazlowski / Killer WHale / Orca (Orcinus orca) bull and cow in Resurrection Bay, Kenai Fjords National Park, outside Seward, Alaska, May.
01264846
Michael Pitts / Bull Elephant seal (Mirounga sp) portrait with penguin walking along beach, St Andrews Bay, South Georgia
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Yva Momatiuk & John Eastcott / Pacific Walrus (Odobenus rosmarus divergens) bull portrait on coastal rocks in haul-out cove, summer, Round Island, Bering Sea, Bristol Bay, Alaska
01023243
Peter Bassett / Aggressive bull elephant seal and penguins on beach at St Andrews Bay, South Georgia
01629426
Heather Angel / Southern magnolia / Bull bay (Magnolia grandiflora) flower. The opening and closing of petals controls the time beetle pollinators enter and leave the flower. Cultivated in garden, Surrey, England, UK...
01619278
Alex Hyde / Southern Elephant Seal bull (Mirounga leonina). This dominant bull or 'Beachmaster' fights off rival males to keep his harem of females. King Haakon Bay, South Georgia. November.
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Alex Hyde / Front flipper of Southern Elephant Seal bull (Mirounga leonina) showing the five nails and webbing between each digit. King Haakon Bay, South Georgia. November.
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Alex Hyde / Southern Elephant Seal bull (Mirounga leonina) swimming. King Haakon Bay, South Georgia. November.
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Alex Hyde / Southern Elephant Seal bull (Mirounga leonina) challenging a rival male. King Haakon Bay, South Georgia. November.
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Alex Hyde / Southern Elephant Seal bull (Mirounga leonina). This dominant bull or 'Beachmaster' fights off rival males to keep his harem of females. King Haakon Bay, South Georgia. November.
01594213
MYN / Lily Kumpe / Bull ant (Myrmecia mandibularis) William Bay National Park, Western Australia. Meetyourneighbours.net project.
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MYN / Lily Kumpe / Bull ant (Myrmecia mandibularis) William Bay National Park, Western Australia. Meetyourneighbours.net project.
01279831
Ingo Arndt / Southern Elephant Seal (Mirounga leonina) bull roaring in water, Stromness Bay, South Georgia Island, Southern Ocean, Antarctic Convergence
01279829
Ingo Arndt / Southern Elephant Seal (Mirounga leonina) bull swimming and breathing at surface, Stromness Bay, South Georgia Island, Southern Ocean, Antarctic Convergence
01221981
Ingo Arndt / Pacific Walrus (Odobenus rosmarus divergens) juvenile bull sleeping, Round Island, Bering Sea, Bristol Bay, Alaska
01221970
Ingo Arndt / Pacific walrus (Odobenus rosmarus divergens) bull in water, Round Island, Bering Sea, Bristol Bay, Alaska, USA
01221971
Ingo Arndt / Pacific Walrus (Odobenus rosmarus divergens) bull in water, Round Island, Bering Sea, Bristol Bay, Alaska
01556641
Graham Eaton / Inside a brick kiln at the derelict Porth Wen brickworks, near Bull Bay, Anglesey, Wales, UK October 2012
01556640
Graham Eaton / Brick kilns at the derelict Porth Wen brickworks, near Bull Bay, Anglesey, Wales, UK October 2012
01538177
Mike Potts / Hooker's sealion (Phocarctos hookeri) colony on 'Sandy Bay'. Enderby Island. Subantarctic New Zealand. January
01530122
Charlie Summers / Grizzly bear (Ursus arctos horribilis) scavenging bull Elk (Cervus canadensis) carcass near Mary's Bay, Yellowstone Lake, Yellowstone National Park, Wyoming, USA, October.
01529765
Wim van den Heever / South African fur seal (Arctocephalus pusillus pusillus) bull breaking apart octopus. False Bay, Cape Town, South Africa.
01529764
Wim van den Heever / South African fur seal (Arctocephalus pusillus pusillus) bull breaking apart octopus. False Bay, Cape Town, South Africa.
00558394
Scott Leslie / Shorthorn Sculpin (Myoxocephalus scorpius), Bonne Bay, Newfoundland, Canada
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Scott Leslie / Shorthorn Sculpin (Myoxocephalus scorpius), Bonne Bay, Newfoundland, Canada
01492047
Christophe Courteau / Aerial view of Chateau du Taureau ('Bull's Castle') Bay of Morlaix, Finistere, Brittany, France, September 2006.
01404969
Steven Kazlowski / Killer Whale / Orca (Orcinus orca) large bull, cow and calf swimming in Resurrection Bay, Kenai Fjords National Park, outside Seward, Alaska, May.
01404968
Steven Kazlowski / Killer Whale / Orca (Orcinus orca) large bull swimming in Resurrection Bay, Kenai Fjords National Park, outside Seward, Alaska, May.
00344132
Yva Momatiuk & John Eastcott / Pacific Walrus (Odobenus rosmarus divergens) bull swimming in aggressive posture, Round Island, Bristol Bay, Alaska
00438321
Ingo Arndt / Southern Elephant Seal (Mirounga leonina) bull swimming, Stromness Bay, South Georgia Island
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Yva Momatiuk & John Eastcott / Southern Elephant Seal (Mirounga leonina) bull biting neck of female to restrain her before mating on beach, St. Andrews Bay, South Georgia Island
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Yva Momatiuk & John Eastcott / Southern Elephant Seal (Mirounga leonina) bull roaring triumphantly after a successful fight for access to females, St. Andrews Bay, South Georgia Island
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Yva Momatiuk & John Eastcott / Southern Elephant Seal (Mirounga leonina) bull chasing his opponent who lost the fight for access to females, St. Andrews Bay, South Georgia Island
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Yva Momatiuk & John Eastcott / Southern Elephant Seal (Mirounga leonina) bulls fighting for access to females, St. Andrews Bay, South Georgia Island
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Yva Momatiuk & John Eastcott / Southern Elephant Seal (Mirounga leonina) bull roaring and raising his body on beach during breeding season, St. Andrews Bay, South Georgia Island
00420019
Yva Momatiuk & John Eastcott / Southern Elephant Seal (Mirounga leonina) bull chasing his opponent who lost a long fight for access to females during spring breeding season, St. Andrews Bay, South Georgia Island
00420001
Yva Momatiuk & John Eastcott / Southern Elephant Seal (Mirounga leonina) bull waiting in surf near harem to intercept females during breeding season, St. Andrews Bay, South Georgia Island
01213718
Suzi Eszterhas / Antarctic Fur Seal {Arctocephalus gazella} large bull and adult females, Hercules Bay, South Georgia
01213717
Suzi Eszterhas / Antarctic Fur Seal {Arctocephalus gazella} large bull and adult females, Hercules Bay, South Georgia
01213685
Suzi Eszterhas / Antarctic Fur Seal {Arctocephalus gazella} bull and females with 1-3 week pups, Fortuna Bay, South Georgia
01213684
Suzi Eszterhas / Antarctic fur seal {Arctocephalus gazella} bull with King Penguins {Aptenodytes patagonicus} Saint Andrews Bay, South Georgia
01213683
Suzi Eszterhas / Antarctic fur seal {Arctocephalus gazella} bull with King Penguins {Aptenodytes patagonicus} Saint Andrews Bay, South Georgia
00420014
Yva Momatiuk & John Eastcott / Southern Elephant Seal (Mirounga leonina) bull, cow and pup, during breeding season in spring, St. Andrews Bay, South Georgia Island
00420013
Yva Momatiuk & John Eastcott / Southern Elephant Seal (Mirounga leonina) bull approaching cow during breeding season in spring, St. Andrews Bay, South Georgia Island
00420012
Yva Momatiuk & John Eastcott / Southern Elephant Seal (Mirounga leonina) bull hind flippers, St. Andrews Bay, South Georgia Island
00420004
Yva Momatiuk & John Eastcott / Southern Elephant Seal (Mirounga leonina) bull, St. Andrews Bay, South Georgia Island
00910225
Kevin Schafer / Northern Elephant Seal (Mirounga angustirostris) researcher marking large bull, Farallon Islands, California
01212360
Graham Eaton / Bull Huss / Larger Spotted Dogfish (Scyliorhinus stellaris) caught on a fishing line, Cardigan Bay, Wales, UK, May
00345988
Yva Momatiuk & John Eastcott / Antarctic Fur Seal (Arctocephalus gazella) bull flipper, Right Whale Bay, South Georgia Island
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Yva Momatiuk & John Eastcott / Antarctic Fur Seal (Arctocephalus gazella) bull with moulted penguin feathers stuck to its wet fur, Right Whale Bay, South Georgia Island
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Yva Momatiuk & John Eastcott / Southern Elephant Seal (Mirounga leonina) bull resting on sandy beach, Right Whale Bay, South Georgia Island
00345981
Yva Momatiuk & John Eastcott / Antarctic Fur Seal (Arctocephalus gazella) bull on beach, Right Whale Bay, South Georgia Island
00345984
Yva Momatiuk & John Eastcott / Antarctic Fur Seal (Arctocephalus gazella) bull with moulted penguin feathers stuck to its wet fur, Right Whale Bay, South Georgia Island
00345983
Yva Momatiuk & John Eastcott / Antarctic Fur Seal (Arctocephalus gazella) bull with moulted penguin feathers stuck to its wet fur, Right Whale Bay, South Georgia Island
00345969
Yva Momatiuk & John Eastcott / Southern Elephant Seal (Mirounga leonina) bull on gravel beach, Antarctic Bay, South Georgia Island
00345964
Yva Momatiuk & John Eastcott / Antarctic Fur Seal (Arctocephalus gazella) bull, blond morph, sitting on gravel beach, Antarctic Bay, South Georgia Island
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Yva Momatiuk & John Eastcott / Antarctic Fur Seal (Arctocephalus gazella) bulls with one blond morph sitting on gravel beach, Antarctic Bay, South Georgia Island
00345946
Yva Momatiuk & John Eastcott / King Penguin (Aptenodytes patagonicus) trio standing around Southern Elephant Seal (Mirounga leonina) bull on gravel beach, St. Andrews Bay, South Georgia Island
00345947
Yva Momatiuk & John Eastcott / Southern Elephant Seal (Mirounga leonina) bull mating with female on beach outside harem, St. Andrews Bay, South Georgia Island
00345938
Yva Momatiuk & John Eastcott / Southern Elephant Seal (Mirounga leonina) bull mating with female after a successful fight, St. Andrews Bay, South Georgia Island
00345937
Yva Momatiuk & John Eastcott / Antarctic Skua (Catharacta antarctica) pecking torn flesh on bloody nose of Southern Elephant Seal (Mirounga leonina) bull wounded during fight for access to females, St. Andrews Bay, South Georgia Is...
00345932
Yva Momatiuk & John Eastcott / Southern Elephant Seal (Mirounga leonina) bulls fighting for access to females, St. Andrews Bay, South Georgia Island
00345931
Yva Momatiuk & John Eastcott / Southern Elephant Seal (Mirounga leonina) bulls fighting for access to females, St. Andrews Bay, South Georgia Island
00345930
Yva Momatiuk & John Eastcott / Southern Elephant Seal (Mirounga leonina) bulls fighting for access to females, St. Andrews Bay, South Georgia Island
00345929
Yva Momatiuk & John Eastcott / Southern Elephant Seal (Mirounga leonina) bulls fighting for access to females, St. Andrews Bay, South Georgia Island
00345928
Yva Momatiuk & John Eastcott / Southern Elephant Seal (Mirounga leonina) bulls fighting for access to females, St. Andrews Bay, South Georgia Island
00345902
Yva Momatiuk & John Eastcott / Southern Elephant Seal (Mirounga leonina) bull roaring in tussock grass, Cooper Bay, South Georgia Island
00345861
Yva Momatiuk & John Eastcott / Southern Elephant Seal (Mirounga leonina) bull and female copulating on beach during breeding season with pup nearby, St. Andrews Bay, South Georgia Island
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Yva Momatiuk & John Eastcott / Southern Elephant Seal (Mirounga leonina) pair copulating on beach, St. Andrews Bay, South Georgia Island
00345859
Yva Momatiuk & John Eastcott / Southern Elephant Seal (Mirounga leonina) bull chasing away another male from females, St. Andrews Bay, South Georgia Island
00345858
Yva Momatiuk & John Eastcott / Southern Elephant Seal (Mirounga leonina) bull chasing away another male from females, St. Andrews Bay, South Georgia Island
00345857
Yva Momatiuk & John Eastcott / Southern Elephant Seal (Mirounga leonina) bull chasing away another male from females, St. Andrews Bay, South Georgia Island
00345856
Yva Momatiuk & John Eastcott / Southern Elephant Seal (Mirounga leonina) bulls fighting for females on beach during breeding season in spring, St. Andrews Bay, South Georgia Island
00345844
Yva Momatiuk & John Eastcott / Southern Elephant Seal (Mirounga leonina) bull with King Penguins (Aptenodytes patagonicus), St. Andrews Bay, South Georgia Island
00345841
Yva Momatiuk & John Eastcott / Southern Elephant Seal (Mirounga leonina) bull moving fast toward another bull on beach where he waits to intercept females during breeding season, St. Andrews Bay, South Georgia Island
00345839
Yva Momatiuk & John Eastcott / Southern Elephant Seal (Mirounga leonina) bull on beach during breeding season, St. Andrews Bay, South Georgia Island
00345838
Yva Momatiuk & John Eastcott / Southern Elephant Seal (Mirounga leonina) bulls fighting in surf during breeding season, St. Andrews Bay, South Georgia Island
00345834
Yva Momatiuk & John Eastcott / Southern Elephant Seal (Mirounga leonina) bulls fight for access to females during breeding season, St. Andrews Bay, South Georgia Island
00345832
Yva Momatiuk & John Eastcott / Southern Elephant Seal (Mirounga leonina) female and bull on beach during breeding season, St. Andrews Bay; South Georgia Island
00345833
Yva Momatiuk & John Eastcott / Southern Elephant Seal (Mirounga leonina) bulls challenge each other on beach during breeding season, St. Andrews Bay; South Georgia Island
00345831
Yva Momatiuk & John Eastcott / King Penguin (Aptenodytes patagonicus) group approaching Southern Elephant Seal (Mirounga leonina) female and bull, St. Andrews Bay, South Georgia Island
00345830
Yva Momatiuk & John Eastcott / Southern Elephant Seal (Mirounga leonina) bull emerging from surf, St. Andrews Bay, South Georgia Island
00345807
Yva Momatiuk & John Eastcott / Southern Elephant Seal (Mirounga leonina) bull waiting in surf to intercept females during breeding season, St. Andrews Bay, South Georgia Island
00345778
Yva Momatiuk & John Eastcott / Southern Elephant Seal (Mirounga leonina) bull resting, Fortuna Bay, South Georgia Island
00345777
Yva Momatiuk & John Eastcott / Southern Elephant Seal (Mirounga leonina) bull resting, Fortuna Bay, South Georgia Island
00345751
Yva Momatiuk & John Eastcott / Southern Elephant Seal (Mirounga leonina) bull attempting to copulate with female, Right Whale Bay, South Georgia Island
00763088
Ingo Arndt / Pacific Walrus (Odobenus rosmarus divergens) juvenile bull resting, Bristol Bay, Round Island, Alaska
00763087
Ingo Arndt / Pacific Walrus (Odobenus rosmarus divergens) bull, Bristol Bay, Round Island, Alaska
00763086
Ingo Arndt / Pacific Walrus (Odobenus rosmarus divergens) bull, Bristol Bay, Round Island, Alaska
00763072
Ingo Arndt / Pacific Walrus (Odobenus rosmarus divergens) bulls, Bristol Bay, Round Island, Alaska
00761782
Suzi Eszterhas / Antarctic Fur Seal (Arctocephalus gazella) bull on shore, Hercules Bay, South Georgia
00761781
Suzi Eszterhas / Antarctic Fur Seal (Arctocephalus gazella) colony, Hercules Bay, South Georgia
00761751
Suzi Eszterhas / Antarctic Fur Seal (Arctocephalus gazella) bull, Fortuna Bay, South Georgia
