The ocean is one of the most extreme environments on Earth. The deepest ocean zones challenge animal survival in unique ways. When light and warmth totally disa

"Explains why the ocean depths are extreme environments and examines how leatherback turtles, giant squids, and other animals have adapted to the harsh conditio

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

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

"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