This post will be an introduction to the topic of past ecosystems by going through past changes to ecosystems for Prelim Biology.
Introduction to Past Ecosystems: Paleontological and Geological Evidence
This video introduces various paleontological and geological evidence.
This is an interesting video about Aboriginal rock art.
This video goes through a brief history of geologic time.
This video goes through the formation of the grand canyon.
This is a TED talk that goes through some information given by ice core drilling.
Want to learn more? Check out more of our Preliminary Biology resources here!