From the swamps of the Everglades to the shores of the Arctic and the deserts of Arizona - travel the nation for an in-depth look at the alligator, polar bear and Gila monster.
Travel the country for an up-close look at feral turkeys in New York, stealthy bobcats in South Carolina, mighty blue whales off the coast of California and mating elk in Colorado.
Super-Powered Heroes - bighorn sheep, sea otters, tiny birds and a pod of dolphins - are large and taking charge all across the United States of Animals.
Witness the remarkable migration of the sandhill cranes in Nebraska, a cattle drive in Texas and a bird enthusiast who runs a wild roadside attraction.
Visit the largest colony of bats on the planet in Texas, discover the surprising habits of South Florida's sharks and see why Arizona's scorpions do strange and fascinating things with ultraviolet light.
Bison thunder across South Dakota's plains during the world's largest bison round-up, while bald eagles fly high at a Maryland dam during a feeding frenzy.
Manatees gather in Florida's coastal waterways, and monk parakeets hang out in a Brooklyn cemetery. Honeybees are dying off, but President Obama is taking up their cause. Donkeys are ruling the streets of an Arizona town they helped build.