White streaks of bird waste paint the steel trusses beneath the Astoria-Megler Bridge over the Columbia River. Every flat surface and hidey-hole of this bridge is stuffed and stippled with nests. Black birds roost on the ...
Plants & Animals
Jan 22, 2024
0
73
Christopher Nolan's film "Oppenheimer" has focused new attention on the legacies of the Manhattan Project—the World War II program to develop nuclear weapons. As the anniversaries of the bombings of Hiroshima and Nagasaki ...
Environment
Aug 1, 2023
0
1
The invasive Asian clam is more common in the lower Columbia River than its native habitat of southeast Asia, according to a study of the clam's abundance in the river.
Ecology
Jul 6, 2023
0
82
New research led by Simon Fraser University paleobotanist Rolf Mathewes provides clues about what plants existed in the Burnaby Mountain area (British Columbia, Canada) 40 million years ago during the late Eocene, when the ...
Plants & Animals
Apr 13, 2023
0
15
Nineteen major populations of wild Pacific salmon in the Fraser River are projected to decline over the next 25 years—but it's not too late to boost their chances of recovery.
Ecology
Jul 20, 2022
0
7
As ice sheets began melting at the end of the last ice age, a series of cataclysmic floods called the Missoula megafloods scoured the landscape of eastern Washington, carving long, deep channels and towering cliffs through ...
Earth Sciences
Feb 14, 2022
2
1906
The Columbia River is home to one of the West Coast's most important Chinook salmon runs. Through late spring and early summer, mature fish return from the sea and begin their arduous journey upriver to spawn. In recent years, ...
Ecology
Oct 19, 2020
4
1897
Where rivers meet oceans, each cycle of the tide moves water in and out of estuaries. The mixing and mingling of fresh and briny water, combined with seasonal weather, creates a unique environment for ecosystems in coastal ...
Environment
Sep 25, 2020
0
8
Caspian terns feeding on young fish have a significant impact on runs of steelhead in the Columbia River, research by Oregon State University suggests.
Ecology
Jul 14, 2020
0
3
Massive freshwater river flows stemming from glacier-fed flooding at the end of the last ice age surged across eastern Washington to the Columbia River and out to the North Pacific Ocean, where they triggered climate changes ...
Earth Sciences
Feb 26, 2020
0
217
