The Seattle Aquarium offers visitors a whole new way to see Puget Sound beginning Friday, as it opens its newly remodeled Pier 59 entrance and the spectacular Window on Washington Waters. Window on ...

WASHINGTON (AP) – The National Aquarium says it will close its Washington branch in the fall. Officials announced Thursday that renovations at the Department of Commerce building that the aquarium has ...

Highly invasive and destructive freshwater mussels are threatening to make their way to the Pacific Northwest through decorative aquarium moss balls. Earlier this month, a wholesale aquarium company ...

WASHINGTON (AP) — An aquarium that opened its doors to visitors in 1885 is closing its doors in the nation’s capital. The National Aquarium is closing its Washington location after the last visitors ...

The Seattle Aquarium has joyfully announced the arrival of Ruby, the first southern sea otter to join its ranks.

The Seattle Aquarium is grieving the loss of Barney, a cherished 39-year-old harbor seal who passed away on March 14.(Seattle Aquarium photo) The Seattle Aquarium is grieving the loss of Barney, a ...

A leading indicator of octopus intelligence is that they get bored. A leading indicator of human intelligence is that the humans at Washington's National Aquarium have figured out this, despite ...

TACOMA, Wash. — A baby sea lion toting an artificial kelp strip was filmed performing intricate rhythmic gymnastics-esque circles through the waters of an aquarium in Washington state. Although only 9 ...