diagram that shows the steps of a acrosome reaction as it happens in the Sea Urchin.
<a href="//commons.wikimedia.org/wiki/User:LadyofHats" title="User:LadyofHats">LadyofHats</a>.
I made this diagram myself using the diagrams on: <a rel="nofollow" class="external autonumber" href="http://www.bio.davidson.edu/Courses/Molbio/MolStudents/spring2005/Dresser/review%20paper.htm">[1]</a> , <a rel="nofollow" class="external autonumber" href="http://academic.brooklyn.cuny.edu/biology/bio4fv/page/actin.html">[2]</a>,and <a rel="nofollow" class="external autonumber" href="http://www.luc.edu/depts/biology/dev/acrosome.htm">[3]</a>. I used Adobe Illustrator to do it including pgf data, and I am freeing it into public domain. <a href="//commons.wikimedia.org/wiki/User:LadyofHats" title="User:LadyofHats">LadyofHats</a>.