grizzly bears

Getting the ratio right

A high protein diet appears linked to kidney disease and shortened lifespans for captive polar bears, a relationship similarly suspected in humans, according to a review led by WSU wildlife biologist Charlie Robbins. “Zoos made some assumptions in the past about the nutritional requirements of polar bears because their diet is almost exclusively

Leveraging the secrets of hibernation to treat diabetes

WSU evolutionary biologist Joanna Kelley studies genetic adaptation to extreme environments: tropical fish that thrive in waters thick with hydrogen sulfide; an Antarctic midge which can survive brutally cold temperatures of -50 degrees Celsius; and now, the charismatic grizzly bear, a species that is insulin-resistant—a metabolic state similar to diabetes in humans—during hibernation but insulin-sensitive during […]

Bear butter: Studying tiny moths as a rich food source

A team of international scientists led by a WSU graduate student are trekking the high peaks of the greater Glacier National Park ecosystem this summer to better understand a tiny but important food source for grizzly bears—the army cutworm moth. Erik Peterson, a master’s student in the School of the Environment, partnered with WSU professor […]

Grizzlies show remarkable gene control before and during hibernation

Being a human couch potato can greatly increase fat accumulation, hasten the onset of Type II diabetes symptoms, result in detrimental blood chemistry and cardiovascular changes, and eventually, bring about one’s death. Large hibernators such as bears however have evolved to adapt to and reverse similar metabolic stressors they face each year before and during […]

Big data on big animals

Work at the WSU Bear Research, Education, and Conservation Center goes well beyond important things like enrichment programs and energy-monitoring collars. WSU scientists are looking at the genomic level to try and determine the myriad ways that bears adapt to their climate. Joanna Kelley, an evolutionary geneticist and assistant professor in the School of Biological […]