Graham assumes that these larger mammals were somewhat buffered from environmental changes. Proponents of the human overkill theory often point to the fact that Clovis points are regularly found in the same sites as mammoth and mastodon bones. But Graham has a different interpretation. Graham points out that today we are once again seeing species go extinct at a rapid rate, and he thinks that we should not forget what happened 11,000 years ago . We re seeing a similar scenario today and humans are hastening the process.
Paleontology has a lot to say about conservation biology.
We need to protect corridors so that animals can move around. He also warns that we should not assume that species will go extinct at a gradual rate. I think we re going to cook along okay with a few species dropping out along the way until we hit a threshold level, and then there will be a major collapse. I think we are going down the curve very fast. Graham is now working on a second version of Faunmap that will include data from Alaska and Canada.