Humpback Whales (Megaptera novaeangliae) co-operatively bubble-net feeding in Stephen's Passage, Southeast Alaska, USA. Pacific Ocean.

Humpback Whales (Megaptera novaeangliae) co-operatively bubble-net feeding (note the herring jumping to get away inside the whales mouth) in Stephen's Passage, Southeast Alaska, USA. Pacific Ocean.

Humpback Whales (Megaptera novaeangliae) co-operatively bubble-net feeding near whale watching boat (note the herring jumping to get away inside the whales mouth) in Stephen's Passage, Southeast Alaska, USA. Pacific Ocean.

Humpback Whales (Megaptera novaeangliae) co-operatively bubble-net feeding near the Safari Quest in Chatham Strait in Southeast Alaska, USA. Pacific Ocean.

Humpback Whales (Megaptera novaeangliae) co-operatively bubble-net feeding in Stephens Passage, Southeast Alaska, USA. Pacific Ocean.

Humpback whales (Megaptera novaeangliae) co-operatively bubble-net feeding in Stephens Passage, Southeast Alaska, USA. Pacific Ocean.

Adult Humpback Whales (Megaptera novaeangliae) cooperatively bubble-net feeding in Stephens Passage, Southeast Alaska, USA. Pacific Ocean.

Humpback whales (Megaptera novaeangliae) co-operatively bubble-net feeding off Chichagof Island in Southeast Alaska, USA. Pacific Ocean.

Humpback Whales (Megaptera novaeangliae) cooperatively bubble-net feeding in Southeast Alaska, USA.

Humpback whales (Megaptera novaeangliae) co-operatively bubble-net feeding (note the baleen hanging from the upper jaws) Chatham Strait. Southeast Alaska, USA, Pacific coast

Humpback Whales (Megaptera novaeangliae) cooperatively bubble-net feeding in Chatham Strait (upper jaw and baleen detail) in Southeast Alaska, USA. Pacific Ocean.

A group of adult humpback whales (Megaptera novaeangliae) co-operatively "bubble-net" feeding along the west side of Chatham Strait in Southeast Alaska, USA. Pacific Ocean.

An adult humpback whale breaching (Megaptera novaeangliae) after dissaffiliating from a group co-operatively "bubble-net" feeding along the west side of Chatham Strait in Southeast Alaska, USA. Pacific Ocean.

Humpback Whales (Megaptera novaeangliae) cooperatively bubble-net feeding in Chatham Strait, Southeast Alaska, USA.

A group of adult humpback whales (Megaptera novaeangliae) co-operatively "bubble-net" feeding in Snow Pass in Southeast Alaska, USA. Pacific Ocean. (rr)

A group of adult humpback whales (Megaptera novaeangliae) co-operatively "bubble-net" feeding along the west side of Chatham Strait in Southeast Alaska, USA. Pacific Ocean.

Humpback Whales (Megaptera novaeangliae) co-operatively bubble-net feeding in Stephen's Passage, Southeast Alaska, USA. Pacific Ocean.