Research yacht monitoring Killer whale (Orcinus orca) activity during the winter months in the fjords of northern Norway. Tysjford, Norway.

Killer whale (Orcinus orca) foraging with gulls (on herring) as they move up the fjords. Tysford, northern Norway.

Group of Killer whales (Orcinus orca), including three adult males, moving through the fjords in winter. Tysfjord, northern Norway.

A group of 6 to 8 Orca (Orcinus orca) which attacked and killed a white-beaked dolphin at 74 11. 31 N and 16 03. 48 E off the continental shelf southwest of Bear Island in the Barents Sea, Norway.

A group of 6 to 8 Orca (Orcinus orca) which attacked and killed a white-beaked dolphin at 74? 11. 31? N and 16? 03. 48? E off the continental shelf southwest of Bear Island in the Barents Sea, Norway.

A group of 6 to 8 Orca (Orcinus orca) which attacked and killed a white-beaked dolphin at 74 11. 31 N and 16 03. 48 E off the continental shelf southwest of Bear Island in the Barents Sea, Norway.

A group of 6 to 8 Orca (Orcinus orca) which attacked and killed a white-beaked dolphin at 74? 11. 31? N and 16? 03. 48? E off the continental shelf southwest of Bear Island in the Barents Sea, Norway. Seen here is a lung from the killed dolphin.

A group of 6 to 8 Orca (Orcinus orca) which attacked and killed a white-beaked dolphin at 74 11. 31 N and 16 03. 48 E off the continental shelf southwest of Bear Island in the Barents Sea, Norway. Seen here are two adult females.

Orca (Orcinus orca) swimming underwater. Water is very dark because the orca enter Norwegian fjords in middle of winter to feed on herring. Svolvaer, Norway (rr)

Whale-watching boat (RIB) travelling with a male Killer whale (Orcinus orca) in fjordland, in winter. Tysfojrd, northern Norway.

Orca (Orcinus orca) swimming in dark water. Water is very dark because the orca enter Norwegian fjords in middle of winter to feed on herring. Svolvaer, Norway (rr)

A group of 6 to 8 Orca (Orcinus orca) which attacked and killed a white-beaked dolphin at 74 11. 31 N and 16 03. 48 E off the continental shelf southwest of Bear Island in the Barents Sea, Norway. Seen here are and adult bull and adult cow.

A group of 6 to 8 Orca (Orcinus orca) which attacked and killed a white-beaked dolphin at 74? 11. 31? N and 16? 03. 48? E off the continental shelf southwest of Bear Island in the Barents Sea, Norway. Seen here is the youngest Orca surrounded by older ani

Orcas (Orcinus orca) The actual moment of take for a group of five transient Orcas that chased, killed, and then ate a single female Dalls porpoise (Phocoenoides dalli) in Icy Strait, South-eastern Alaska. After the kill some of the animals spy-hopped, b

Killer whale (Orcinus orca) spy hopping Tysfjord, Norway