The way an embryo develops shows a method of patterning that makes use of physical processes as if they conform to a predetermined plan.
Look what I stumbled on at the local community center.
How do you get from a one-dimensional code to a three-dimensional, hierarchical structure that can operate in the fourth dimension of time?
No, not that bird, much as a prime Thanksgiving turkey done right can seem like a work of genius.
How did fruit flies and hummingbirds arrive at the same solution to hovering flight?