"Explains why the world's deserts are extreme environments and examines how gray foxes, rattlesnakes, and other animals have adapted to the harsh climates"--Provided by publisher.

"Explains why the world's deserts are extreme environments and examines how gray foxes, rattlesnakes, and other animals have adapted to the harsh climates"--Provided by publisher.

"Explains why the Arctic and Antarctic are extreme environments and examines how polar bears, penguins, and other animals have adapted to the cold"--Provided by publisher.

"Explains why the ocean depths are extreme environments and examines how leatherback turtles, giant squids, and other animals have adapted to the harsh conditions"--Provided by publisher.

"Explains why caves are extreme environments and examines how vampire bats, giant water bugs, and other animals have adapted to the harsh conditions"--Provided by publisher.

LIFE Magazine is the treasured photographic magazine that chronicled the 20th Century. It now lives on at LIFE.com, the largest, most amazing collection of professional photography on the internet. Users can browse, search and view photos of today’s people and events. They have free access to share, print and post images for personal use.