Paul Souders/ Worldfoto / Humpback Whale (Megaptera novaeangliae) pod cooperative bubble-net feeding, Frederick Sound, Alaska

Paul Souders/ Worldfoto / Humpback Whale (Megaptera novaeangliae) pod cooperative bubble-net feeding, Frederick Sound, Alaska

Mark Carwardine / Humpback whales (Megaptera novaeangliae) feeding on herring, showing palate and baleen plates, Frederick Sound, South East Alaska, USA, Endangered or threatened species (Vulnerable)

Tim Fitzharris / Black Bear (Ursus americanus) catching a salmon, Gunnuk Creek, Frederick Sound, Alaska

Thomas Mangelsen / Orca (Orcinus orca) mother and young leaping through water, Frederick Sound, Alaska

Tony Wu / North Pacific humpback whale (Megaptera novaeangliae kuzira) breaching at sunset, Kupreanof Island, Frederick Sound, Alaska, USA, July.

Paul Souders/ Worldfoto / Humpback Whale (Megaptera novaeangliae) pod surfacing, Frederick Sound, Alaska

Paul Souders/ Worldfoto / Humpback Whale (Megaptera novaeangliae) pod cooperative bubble-net feeding, Frederick Sound, Alaska

Paul Souders/ Worldfoto / Humpback Whale (Megaptera novaeangliae) pod cooperative gulp feeding, Frederick Sound, Alaska

Paul Souders/ Worldfoto / Humpback Whale (Megaptera novaeangliae) pod coopertive gulp feeding, Frederick Sound, Alaska

Paul Souders/ Worldfoto / Humpback Whale (Megaptera novaeangliae) pod cooperative bubble-net feeding, Frederick Sound, Alaska

Paul Souders/ Worldfoto / Humpback Whale (Megaptera novaeangliae) pair gulp feeding, Frederick Sound, Alaska