These are the first known cases of individuals catching the virus from their pets in Canada or the U.S.

Researchers suspect the source of the toxins may be some of the state’s 50,000 or so marijuana farms.

Syrian hamsters and thirteen-lined ground squirrels are tolerant of chilly temperatures, thanks to amino acid changes in a cold-responsive ion channel. 

Male rodents given access to a running wheel early in life show increased neural activity and improved memory as adults.

Female rats fed a typical Western diet had offspring that were at higher risk of obesity than moms fed low-fat, high-grain meals.

Changes in diet can cause gut microbes to produce acetate, which in turn stimulates insulin secretion and obesity in rodents, scientists show.

Visit the lab of Matthew Andrews at the University of Minnesota Duluth, who studies hibernating thirteen-lined ground squirrels to learn how their hearts manage extreme temperature fluctuations.

Overwintering ground squirrels survive fluctuations in body temperature that would cause cardiac arrest in nonhibernators.

“Blind” rats fitted with a neuroprosthetic device that stimulates the brain when the animals turn their heads to the north or south can navigate mazes as well as sighted rats.