In the summer, Arctic ground squirrels of both sexes have levels of testosterone and other "male" steroid hormones or androgens in their blood that are 10 to 200 times that of other ground squirrels.

Arctic Squirrels Use Steroids to Bulk Up But Don’t Suffer the Consequences Fat alone couldn’t get these squirrels through hibernation in burrows that get almost as chilly as -10 degrees Fahrenheit ...

Not so for the arctic ground squirrel.“Their immune system has androgen levels no greater than my control species, which was the Columbian ground squirrel,” says Boonstra. “They’ve been able to ...

Arctic ground squirrels, it turns out, ramp up their anabolic steroid levels and keep them high not just during the spring mating season, but during the summer and fall.

Yes, Arctic ground squirrels really do pump themselves up on steroids every summer -- though the process is natural, and doesn't involve any competitive doping. But researchers think they've ...

Thirteen-lined ground squirrels resemble chipmunks on steroids. They're about the same length as a chipmunk - 10 inches from tip of nose to tail - but can be double the weight.

Colleagues giggled at the mere mention of what amounts to squirrels on steroids, but Ald. Howard Brookins (21st) was dead serious. “It’s a pet peeve. It does invoke some giggles.

Giant squirrels are omnivorous, feeding on fruits, flowers, nuts, bark, ... Secret Supersize Squirrel on Steroids." 29 May 2016. By Dan Evon. Dan Evon is a former writer for Snopes. Article Tags.

In the summer, Arctic ground squirrels of both sexes have levels of testosterone and other "male" steroid hormones or androgens in their blood that are 10 to 200 times that of other ground squirrels.