David Zelenka began developing interactive media in 1993 under the company name Interactive Earth. Since that time he has developed web sites, graphic design, educational materials and released books that reflect the great creativity evident in both human endeavor and the natural world.

David's skill as a naturalist, artist, educator and designer find their roots in a deep curiosity and love for the natural world. He has worked to promote stewardship of a variety of ecosystems in the United States as a multimedia contractor, seasonal park ranger, wilderness guide, teacher and curriculum developer. His recent endeavors have been to encourage critical-thinking in education and to foster genuine interactions between students, their communities and the environment.