The squirrel fad really took off in the 1870s, thanks to Frederick Law Olmstead's expansive parks. These squirrels are not as agile as red or gray squirrels. We need you to answer this question! They were brought to the UK and introduced to the estates of the wealthy as status symbols. They have been introduced into urban areas in … Gray squirrels are native to the United States. Some get so big they look like an orange cat in a tree. Giant black squirrels one of the longest animals. It is found in the Neotropics and the Nearctic. Sciurus niger (Eastern Fox Squirrel) is a species of rodents in the family squirrels. Fox squirrels are found throughout the eastern and central United States, south into northern Mexico, and north into Canada. Fox squirrels are found in most of the state, except in the extreme northeast. Home Blogs Creatura Blog Giant black squirrels one of the longest animals. How was the eastern grey squirrel introduced? This South-East Asian squirrel is one mighty long animal, ... here because they’re competition for our native possums, but over a century ago, two species were deliberately introduced. History of grey squirrels in UK ... Where a grey squirrel has introduced Squirrel pox, population decline amongst red squirrels is 17-25 times more rapid than through competition alone. Geographic Range. Individuals are known to live for 16 years. The fox squirrel (Sciurus niger), also known as the eastern fox squirrel or Bryant's fox squirrel, is the largest species of tree squirrel native to North America.Despite the differences in size and coloration, they are sometimes mistaken for American red squirrels or eastern gray squirrels in … The fox squirrel is Minnesota's biggest tree squirrel. It is a solitary frugivore.