Wildlife agencies counted 232 squirrels on Mount Graham, about the same as a year ago, which is good news during a drought.

Grey squirrels are an invasive, non-native species introduced from North America to sites in Great Britain and Ireland between 1876 to 1929. They out-compete the native red squirrels and multiply ...

Craig Shuttleworth does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond ...