The most impressive aspect of the living world is it’s diversity. Ernst Mayr: "This is Biology"

Use of pictures

I have licenced all my pictures under CreativeCommons-by-sa 3.0 or later. Therefore, you can copy, distribute, and transmit these pictures given you keep the license and attribute it to me. Most of these pictures plus several others you may find at my account at Wikimedia Commons.
Few of the pictures I have used are taken by other authors. These authors keep the copyright. If you are interested in on of those pictures, please contact me. I will forward the request.

The photography at the header of my web page shows me collecting data in the Kidonavo River, Madagascar. It was taken by Goran Safarek (copyright by Goran Safarek).