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...

Doug Allan / Killer Whales (Orcinus orca) create bow wave to knock Weddell Seal (Leptonychotes weddellii) from the ice; a co-operative hunting strategy. Marguerite Bay, Antarctic Peninsula, summer. Freeze Frame bo...

Doug Allan / Killer Whales (Orcinus orca) approaching Weddell Seal (Leptonychotes weddellii) in preparation to knock it from the ice by creating a wave. Marguerite Bay, Antarctic Peninsula, summer. Freeze Frame bo...

Doug Allan / Weddell Seal (Leptonychotes weddellii) being thrown off ice by wave created by Killer Whales (Orcinus orca) using co-operative hunting strategy. Marguerite Bay, Antarctic Peninsula, summer. Freeze Fra...

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), member of a pod searching for Weddell Seals (Leptonychotes weddellii) among sea ice. Marguerite Bay, Antarctic Peninsula, summer. Freeze Frame book plate page 118-119.

Doug Allan / Killer Whale (Orcinus orca) observing Weddell Seal (Leptonychotes weddellii) in preparation to knock it from the ice by creating a wave. Marguerite Bay, Antarctic Peninsula, summer. Freeze Frame book...

Doug Allan / Weddell Seal (Leptonychotes weddellii) being thrown off ice by wave created by Killer Whales (Orcinus orca) using co-operative hunting strategy. Marguerite Bay, Antarctic Peninsula, summer. Freeze Fra...

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...

Bryan and Cherry Alexander / Zodiac filled with tourists passing icebergs in Marguerite Bay, Antarctica, February 2009.

Bryan and Cherry Alexander / Argentinian Antarctic Research Station San Martin in Marguerite Bay, Antarctica, February 2009.

Bryan and Cherry Alexander / Mountains, valleys and glacier along the Fallieres Coast. Marguerite Bay, Graham Land, Antarctic Peninsula, February 2009.

Bryan and Cherry Alexander / Passengers from the "Ocean Nova" being taken by zodiac to the "Clipper Adventurer". Marguerite Bay, Antarctica, February 2009.

Bryan and Cherry Alexander / Iceberg with ice arch grounded in Marguerite Bay, Antarctica, February 2009.

Bryan and Cherry Alexander / Spanish Antarctic Research vessel A33 "Hesperides" passing a glacier in Marguerite Bay, Antarctica, February 2009.

Bryan and Cherry Alexander / Ice arch in Marguerite Bay at sunset, south of the Antarctic Circle, Antarctica, February 2009.

Doug Allan / Rock carried from glacier and lodged in iceberg, Marguerite Bay, Antarctic peninsula. January 2009

Marguerite Smits Van Oyen / Aerial view of Ile du Diable and Bay of Ghoubbet, Djibouti, East Africa

Marguerite Smits Van Oyen / Aerial view of Ile du Diable and Bay of Ghoubbet, Djibouti, East Africa