Add Yahoo as a preferred source to see more of our stories on Google. The study shows that bolder, more aggressive squirrels tend to find more food or defend a larger territory (Jaclyn Aliperti/UC ...

How human activities negatively affect urban red squirrels' problem-solving skills and potentially their chances of thriving is revealed in newly published research from the universities of Chester ...

The Richardson's ground squirrel weighs less than a pound, is about a foot long and is native to the northern Plains. The little creature is also a ferocious tunneler, and it's exasperating the people ...

The thirteen-lined squirrel, aptly named for the thirteen stripes on its back, spends much of its time above ground dodging angry humans. But for several months of the year, it gets a reprieve: Like ...

When arctic ground squirrels hibernate for the winter, they can lower their body temperatures to freezing levels and stay dormant for up to eight months. Researchers at the University of Alaska ...

When arctic ground squirrels hibernate for the winter, they can lower their body temperatures to freezing levels and stay dormant for up to eight months. Researchers at the University of Alaska ...

Renal cell carcinoma and urinary casts in Japanese squirrels. Kidneys of case 5 (A–C) and case 2 (D–F). (A–C) Eleven cases were diagnosed as renal cell carcinoma. Grossly, multiple nodules were ...