Read an Excerpt
In the Fibonacci sequence each new number comes from adding up the two before and figuring the sum.
This number set is used to plot a graceful curving line that's often found in nature as part of its design.
Fibonacci creatures have a certain body part which fits the winding, coiling shape that spirals on this chart.
These parts are most important the help the beasts survice.
Finding food and fighting foes can keep each one alive.