Types of developmental change
Developmental changes have likely been involved in important morphological changes
like the evolution of novel and complex structures.
Here are a few of the sorts of developmental changes that may have been important:
- Module duplication and adaptation
A module refers to a
unit that can be duplicated and further adapted. For example, arthropods have various
numbers of body segments. Segment duplication and loss is a developmental change that
probably occurred many times in the evolution of this
clade. The graphic below shows a hypothetical example of module
duplication and adaptation.
|Learn more about evolution and development in context: Why the eye?, a case study.|