If organisms resulted from haphazard undirected processes, their design constraints would be few and highly flexible.
Transposable elements modify gene regulation in maize to confer drought tolerance, alter flowering time, and enable plants to grow in toxic aluminum soils.
Our ability to adapt to fantastically diverse circumstances did not result from the happenstance of environmental conditions.
The genetic variation in any species is confined to a limited set of variables such as a finch beak’s thickness.
Design motifs such as four-bar linkages and control systems must meet exacting requirements whether implemented in a space shuttle or a fish.