Orca (Orcinus orca) pod surfacing calm waters Chatham Strait, southeast Alaska, USA.

Orca (Orcinus orca) pod surfacing Chatham Strait, southeast Alaska, USA.

Orca (Orcinus orca) pod surfacing Chatham Strait, southeast Alaska, USA.

Orca (Orcinus orca) Adult Bull surfacing in calm waters. Southeast Alaska, USA. (Note the exceptionally tall dorsal fin - the field diagnostic for a mature male Orca)

Orca (Orcinus orca) Bull surfacing in Tracy Arm, southeast Alaska, USA.

Four adult Humpback Whales (Megaptera novaeangliae) surfacing in Windham Bay, Southeast Alaska, USA. Pacific Ocean.

The transient Orca (Orcinus orca) pod T88 consisting of 6 animals in total. The pod was sighted off Cape Strait and followed to Beacon Point along the east coast of Kupreanof Island just outside of Petersburg, Southeast Alaska, USA. Pacific Ocean. The adu

Orca (Orcinus orca) pod surfacing in Chatham Strait, southeast Alaska, USA.

The transient Orca (Orcinus orca) pod T88 consisting of 6 animals in total. The pod was sighted off Cape Strait and followed to Beacon Point along the east coast of Kupreanof Island just outside of Petersburg, Southeast Alaska, USA. Pacific Ocean. The adu

A pod of 5 Orcas (Orcinus orca) encountered off Gardner Point on the south end of Admiralty Island, Southeast Alaska. The pod consisted of two adult males, one adult female, one possible juvenile male, and an undetermined smaller juvenile. Total pod size

An adult bull surfacing from a pod of 5 Orcas (Orcinus orca) encountered off Gardner Point on the south end of Admiralty Island, Southeast Alaska. (rr)

Adult Humpback Whale (Megaptera novaeangliae) breaching in Icy Strait, Southeast Alaska, USA. Pacific Ocean.

Resident Orca (Orcinus orca) - also called Killer Whales - in tight pod formation in Stephen's Passage, Southeast Alaska, USA. Pacific Ocean.

Killer whale about to surface (Orcinus orca) Monterey Bay, California, USA

Female transient killer whale (orcinus orca) tail slap, tail lob, fluking, National marine sanctuary, Monterey bay, California Pacific ocean, USA.

Killer whale, Orcinus orca, surfaces in calm sea Monterey, California, USA

Adult humpback whale (Megaptera novaeangliae) fluke-up dive in Frederick Sound, Southeast Alaska, USA. Pacific Ocean.

Adult Humpback Whale (Megaptera novaeangliae) breaching off Point Adolphus in Southeast Alaska, USA. Pacific Ocean.

Transient killer whale (Orcinus orca) spy hop. National marine sanctuary, Monterey bay, California Pacific ocean, USA.

Female transient Killer whale (Orcinus orca) feeding on Grey whale calf (Eschrichtius robustus) intestines visible, Monterey Bay, California, USA

Transient Killer whale (Orcinus orca) spy hopping Monterey Bay, California, USA

Killer whale, Orcinus orca, breaching Monterey, California, USA

Transient Killer whale (Orcinus orca) eating Common murre / guillemot (Uria algae) Monterey Bay, California, USA

Killer whales, Orcinus orca, moving in parallel to whale watching boat with people observing pod Monterey, California, USA

Adult female Orca (Orcinus orca) surfacing in Southeast Alaska, USA. Pacific Ocean.