The scientific study of evolution is filled with controversies. That was one of the messages coming out of a two-day symposium on the latest in research from the field that was hosted by Rockefeller University last week. I’ll discuss the scientific details of some of the talks separately, but it’s worth analyzing these controversies in light of the “academic freedom” bills that are being considered by a number of states, which purport to protect teachers who discuss controversies regarding evolution.

Nationwide, nearly half a dozen states are considering variants of such bills, some of which throw in the origin of life and climate change for good measure. Legislators in Florida recently introduced such a bill in response to new educational standards that were the first to formalize the teaching of evolution. Althought two incompatible bills passed the state House and Senate, they died when the legislature went out of session; similar measures are still pending in other states. These bills appear to have originated at the pro-Intelligent Design thinktank the Discovery Institute, and constitute part of its latest effort towards reducing the teaching of evolution in public schools.