A lone otter swims in Resurrection Bay near Seward small boat harbor, South-central Alaska; Alaska, United States of America

A sea lion swims into the fish weir area and grabs a Pink salmon (Oncorhynchus gorbuscha), Allison Point, outside Valdez; Alaska, United States of America

A sea lion swims into the fish weir area and grabs a Pink salmon (Oncorhynchus gorbuscha), Allison Point, outside Valdez; Alaska, United States of America

A lone sea otter swims in the small boat harbor in Seward, Southcentral Alaska.

Animals

Underwater view of King Salmon (Class Actinopterygii) in Moose Creek, a tributary of the Deshka River, South-central Alaska; Alaska, United States of America

Chinook Salmon, also known as King Salmon (Oncorhynchus tshawytscha) schooled in a holding pattern prior to spawning in a tributary of the Deshka River, South-central Alaska; Alaska, United States of America

Chinook Salmon, also known as King Salmon (Oncorhynchus tshawytscha) schooled in a holding pattern prior to spawning in a tributary of the Deshka River, South-central Alaska; Alaska, United States of America

Close up of a Steller Sea (Eumetopias jubatus) lion in a tank at the Alaska Sealife Center, Seward, Southcentral Alaska

Chinook Salmon, also known as King Salmon (Oncorhynchus tshawytscha) schooled in a holding pattern prior to spawning in a tributary of the Deshka River in summer; Alaska, United States of America

Sockeye Salmon, also known as Red Salmon (Oncorhynchus nerka) male threatening a challenger by also raising his snout in an Alaskan stream during the summer; Alaska, United States of America

Dall's Porpoises swimming at the surface of the ocean, Prince William Sound, Whittier, Southcentral Alaska, USA, Winter

Dall's Porpoise swimming at the surface of the ocean, Prince William Sound, Whittier, Southcentral Alaska, USA, Winter

Dall's Porpoises swimming at the surface of the ocean, Prince William Sound, Whittier, Southcentral Alaska, USA, Winter

Dall's Porpoises swimming at the surface of the ocean, Prince William Sound, Whittier, Southcentral Alaska, USA, Winter

killer whale, or orcas, Orcinus orca, large bull swimming in Resurrection Bay, Kenai Fjords National Park, outside Seward, southcentral Alaska, spring

Stellar Sea lions (Eumetopias jubatus) swimming, South-central Alaska; Alaska, United States of America