Imagine this!

"We can fly straight up or down, backwards or forwards, stop and hover, make hairpin turns - at top speed or in slow motion. And we've been on Earth for around 300 million years"--.

"Fast or slow, sometimes, frequently, other times, rarely. Eyes that work together, eyes that work separately from each other. Eyes that swivel, eyes that see 360 degrees, eyes that see like telescopes. Every living animal blinks"--Provided by publisher.

The rhythm of every animal's heartbeat is different. From tiny meadow mice to tall giraffes to the octopus with three hearts, each animal's heart has its own beat, in tune with its body's needs.