When an animal faces a predator or sudden danger, the heart rate goes up, breathing becomes more rapid, and fuel in the form of glucose is pumped throughout the body to prepare the animal to fight or flee. These physiological changes, which constitute the “fight or flight” response, are thought to be triggered in part […]
Photo: A northern wheatear flies near Wales, Alaska, with a geolocator device on its back. Photo by Heiko Schmaljohann Birds that spent their summer next to muskoxen are now leaving Alaska to spend winter with zebras. Northern wheatears are robin-size songbirds with tan bodies and handsome black eye bands. Wheatears are now gobbling insects in […]
JUNEAU, Alaska — A Coast Guard aircrew and a good Samaritan boat crew medevaced a vessel captain after he was injured aboard a fish processing vessel northeast of Biorka Island, Saturday. The MH-60 Jayhawk helicopter crew from Coast Guard Air Station Sitkatransported the captain from shore near the vessel to the air station, where they transferred him […]
Image: A sedge darner dragonfly rests on a leaf. The dragonfly’s compound eyes are each made up of thousands of light- and motion-sensitive units. Photo-Ned Rozell The Piper Super Cub is a nimble favorite of Alaska bush pilots who land on and take off from gravel bars and mountaintops. Engineers who designed the plane […]