Adult Humpback Whales (Megaptera novaeangliae) surfacing (note blows) Icy Strait, Southeast Alaska, USA. Pacific Ocean.

Adult Humpback Whales (Megaptera novaeangliae) cooperative bubble-net feeding for herring in Iyoukeen Bay, Chichagof Island, Southeast Alaska.

Humpback Whale (Megaptera novaeangliae) Adult surfacing (note blow) Icy Strait, Southeast Alaska, USA. Pacific Ocean.

Adult humpback whale (Megaptera novaeangliae) cooperatively bubble-net feeding in Southeast Alaska, USA. Pacific Ocean. Note the expanded ventral pleats as well as the baleen hanging from the upper jaws.

Adult Humpback Whale (Megaptera novaeangliae) surface side lunge feeding (notice pink roof of mouth and baleen plates hanging from upper jaw), Southeast Alaska, USA. Pacific Ocean.

Adult humpback whales (Megaptera novaeangliae) cooperatively bubble-net feeding in Freshwater Bay on Chichagof Island in Southeast Alaska, USA. Pacific Ocean. This event lasted over three hours with as many as 16 whales and as few as 12 in any given bubbl

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 Whale (Megaptera novaeangliae) Adult breaching. Frederick Sound, Southeast Alaska, USA. Pacific Ocean.

Humpback Whale (Megaptera novaeangliae) Adult fluke-up dive. Frederick Sound, 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.

Adult humpback whale (Megaptera novaeangliae) tail throw beside the charter yacht Safari Spirit in Chatham Strait, Southeast Alaska, USA. Pacific Ocean. Not property released. (rr)

Humpback Whale (Megaptera novaeangliae) Aerial view of adult surfacing off Chichagof Island in Southeast Alaska, USA. Pacific Ocean.

Adult humpback whale (Megaptera novaeangliae) breaching in Southeast Alaska, USA. Pacific Ocean.

Humpback Whale (Megaptera novaeangliae) flicking flukes. Chatham Straits, S. E. Alaska

Adult humpback whale (Megaptera novaeangliae) surfacing in the mist shrouded waters of Hobart Bay, Southeast Alaska, USA. Pacific Ocean.