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  5. Page 2
Home»Posts tagged with»decline (Page 2)

Study aims to understand cognitive decline in older dogs

By Lea Gardine | University of Alaska-Fairbanks on Feb 17, 2024   Featured, Science/Education  

Study aims to understand cognitive decline in older dogs

A University of Alaska Fairbanks researcher has launched a study of cognitive decline in older Alaska dogs.  Canine cognitive disorder, or CCD, presents similarly to Alzheimer’s disease in humans, with symptoms including disorientation, failure to recognize family members, inability to retain control over basic bodily functions, and changes in personality.  Dr. Greg Pietsch, a veterinarian […]

Yet Another Dramatic Arctic Report Card

By Ned Rozell | Geophysical Institute on Dec 15, 2023   Featured, General News, The Arctic and Alaska Science  

Yet Another Dramatic Arctic Report Card

SAN FRANCISCO — In December 2006, I sat in a similar carpeted room in this city and listened to scientists talk about an Alaska-size chunk of sea ice that was no longer floating on the northern oceans compared to previous years. That meant that the “refrigerator of the northern hemisphere” was much less powerful than […]

Rising sea temperatures lead to reduction in polar bears since the last ice age

By Liva Polack | University of Copenhagen - The Faculty of Health and Medical Sciences on Nov 27, 2023   Featured, Science/Education  

Rising sea temperatures lead to reduction in polar bears since the last ice age

CLIMATE DNA from Greenlandic polar bears shed light on how their numbers have been dramatically influenced by changes in climate over the last several thousand years. Relatively small increases in sea temperature have had big consequences for the polar bear. It is nothing new that polar bears in Greenland are threatened. A study just published […]

Inbreeding Contributes to Decline of Endangered Killer Whales

By Northwest Fisheries Science Center on Mar 28, 2023   At Sea, Featured, NOAA Fisheries and Alaska Fisheries Science Center, Science/Education  

Inbreeding Contributes to Decline of Endangered Killer Whales

The small size and isolation of the endangered population of Southern Resident killer whales in the Pacific Northwest have led to high levels of inbreeding. This inbreeding has contributed to their decline, which has continued as surrounding killer whale populations expand, according to research published in Nature Ecology and Evolution. The groundbreaking new study combined modern genomics […]

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