TROPICAL FOSSILS IN ALASKA | GEOPHYSICAL INSTITUTE
Jul 11, 2025 A 20-inch fossil palm leaf that once waved over a tropical forest in Alaska 45-60 million years ago. The fossil was found in rocks near the Malaspina Glacier. Photo from the … From bing.com
FELTLEAF WILLOWS: ALASKA’S MOST ABUNDANT TREE | GEOPHYSICAL INSTITUTE
May 25, 2023 The most plentiful moose food in the state — and probably Alaska’s most numerous tree — is the feltleaf willow, which was once called the Alaska willow. As its name … From bing.com
Jul 31, 2025 A tree's age can be easily determined by counting its growth rings, as any Boy or Girl Scout knows. Annually, the tree adds new layers of wood which thicken during the … From bing.com
Jul 11, 2025 Burls, spherical woody growths on the trunks of spruce, birch and other trees, are commonly found throughout wooded parts of Alaska. From bing.com
THE SECRET LIFE OF RED SQUIRRELS | GEOPHYSICAL INSTITUTE
Nov 27, 2024 Stan Boutin has climbed more than 5,000 spruce trees in the last 30 years. He has often returned to the forest floor knowing if a ball of twigs and moss within the tree contained … From bing.com
THE WAR WITHIN THE ASPEN LEAVES | GEOPHYSICAL INSTITUTE
Jul 31, 2025 They think the fierce, silent conflict has probably benefited both the insect population and a tree that’s been under siege in Interior Alaska for a long time. Leaf miners are … From bing.com
MORE ON WHY TREE TRUNKS SPIRAL | GEOPHYSICAL INSTITUTE
Jul 31, 2025 I eventually found a tree with a spiral lightning mark and it followed the spiral grain exactly. One tree, of course, proves nothing. "But why should the tree spiral? More speculation … From bing.com
Jul 31, 2025 Witches' broom on spruce trees is caused by a rust disease (a kind of fungus disease). The rust lives on the spruce tree throughout the year. Each spring, small yellow … From bing.com
Jul 31, 2025 Interior Alaskan forests have only six native tree species: white spruce, black spruce, quaking aspen, balsam poplar, larch (tamarack) and paper birch. Northern Canadian … From bing.com
COTTONWOOD AND BALSAM POPLAR | GEOPHYSICAL INSTITUTE
Jul 31, 2025 The Klukwan giant holds the national record for black cottonwood diameter. Its nearest rival, a tree near Salem, Oregon, does hold the national height record. The Klukwan … From bing.com
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