By clicking on the links in the left frame, you will find information about the courses
I teach in the Biology Department at City College of San Francisco.

In addition, I direct the Center for Habitat Restoration at City College,
click on the link in the left frame to find out how to get involved!

* why the frog?  My last name means frog in my native dialect (Plattdeutsch)
  and I feel a kinship to these fascinating and endangered beings.