Tropical Ecosystems of Costa Rica-2002. This page has served 44646 visitors. Two courses in the natural sciences and instructor permission.
Limited scholarships are available.
There are numerous forms to turn in. Medical Emergency Forms Waiver Forms Course Description Scientists equate the rapid loss of species due to human activities in the modern era to the massive extinction events evident in the geologic record. However, these two types of extinction events differ in important ways. In the extinction event in which we now live, humans make decisions about which species to save. We also decide, explicitly or implicitly, which species will go extinct.