Biology 4490- Assignment 3

Go to this web-site and read it ( You will have to click on the internal links within this paper (especially the "Current Arguments") and may have to look at your text and/or other web-sites as well (see Biol 4490 syllabus). In two typewritten pages, answer the following questions:


1) What are the two major, competing hypotheses concerning the extinction of the dinosaurs at the end of the Cretaceous?

2) What kinds of data are used to support both?

3) Are these hypotheses necessiarly mutually exclusive? What is similar about both?


This assignment is due at the beginning of class on Monday, 03 December 2001. It is worth 10 points.