The Amazon Rainforest has earned the title "The Lungs ... Whether it's a sloth lazily hanging from a branch or a vibrant macaw streaking across the sky, the variety is stunning and unparalleled.

The guttural call of a howler monkey. The rhythmic clucking of a macaw. The throaty burps of a tree frog. It sounds like the ...

Most of the 40 million people who live in the Amazon are in urban centers, the World Wildlife Fund said, and rely on the rainforest's ... birds and animals" like macaws and howler monkeys.

After years of construction, the newest wing at the Caldwell Zoo is officially open for business. Step inside the rainforest ...