This is the field museum blog 1 of 2. The name of tour guide for the first part of the field trip's name was Dennis. We learned about the first 544 million years before us. We took one day of school off to learn about the creatures before us humans.
The search feature above is actually quite good for finding what you need! Type in the one or two words that you are looking for information on, and it will generate a list of every page that mentions that word.