USA

It borders on Canada in the north and Mexico in the south. It is washed by the Atlantic Ocean in the east, by the Pacific Ocean in the west and by the Gulf of Mexico in the south.
The present territory of the USA consists of three separate parts. The USA proper and Alaska are situated in North America. The Hawaii are situated in the central part of the Pacific Ocean.

Northeast
Pacific Islands
Southwest
South Central
Southeast

48 states.

Mountain lions live throughout the western U.S.

Southeast, and is the official state reptile of Florida, Louisiana and Mississippi.

The eastern grey squirrel and eastern fox squirrel can both be found in every southern state. The southern range of the American red squirrel dips into the higher elevations of Virginia and North Carolina.

and eastern portions of Kansas, Nebraska and Oklahoma.

The American bison is the heaviest land animal in North America and can be as tall as 6.5 feet (2.0 m) and weigh over a ton.

Nevada and Hawaii.

The White-tailed deer is common in all eastern states.

The gray wolf once roamed the Eastern U.S., but is now extinct from this region.

Eastern USA

on the Canada–US border in Idaho. They are also found in Yellowstone National Park.

Call of the Atlantic puffin

Artic fox is a small fox native to the Arctic regions of the Northern Hemisphere and common throughout the Arctic tundra biome.