I am attaching a report of a workshop on “Developmental Bias” and its impact on evolution.I found the article well written,accessible and informative.
So thought i would attach it for the community.
It has an interesting conclusion below.
Call it bias or not, the many examples presented at the workshop (only some of which are mentioned here) make it clear that there is a highly non-uniform distribution of variability in biological organisms, largely due to their developmental processes. Several of the examples also make it clear that this has direct consequences for the course of evolution, possibly resulting in directionality in evolutionary change, in particular along a path of developmental preference. This certainly seems to challenge the standard view of uniform variability, and natural selection being the only source of directionality in evolution.