Amphibians are cold-blooded animals that usually split their time between using their lungs on land and breathing with gills underwater. Learn about the three groups of amphibians which include frogs and toads, newts and salamanders and caecilians.
Insects and arachnids are the most popular wild animal on Earth. Read our collection of articles discussing all sorts of ants, bugs, butterflies, spiders and just about every other type of insect and arachnid.
Birds are often envied for their ability to fly, but not all of them can. Learn how birds can manipulate feathers, bone and wing structure to soar through the air and even dive-bomb into the water for food.
Scientifically-speaking there are 11 mammal groups, and most Mammals are warm-blooded, have body hair, give live birth and nurse their young with milk from mammary glands. Check out these articles about all kinds of mammals.
Marine life includes an incredible and vibrant array of wild animals that live in the ocean. From tiny phytoplankton to massive blue whales, marine life is a vital source of food, energy and life for the entire planet.