Last time, the talk was about volcanos. This time, it was called "Fossils and Predators". It was about animals from the Cambrian age,when everything in the world lived under the water. Nothing was living on the land yet. There was some ground, but there was no grass or anything living on top. The Cambrian age was 500 million years ago.
The scientist handed out a whole bunch of trilobite fossils for us to look at. She had some that were small, and some that were really big. She also had this computer animation program, that was full of animals from the Cambrian swimming around. She said they don't know that they really would have looked like this, or been these colours. Even the scientists have to make some guesses, because all they have to work with are the fossils.
For the whole time were were there, they were talking about the Burgess Shale. I knew about that because my mom makes us stop there everytime we drive from the lake to Calgary to see our grandparents. It is by Field, down the highway from Tunnel Mountain (where you can see the train going into and coming out of the mountain at the same time). A guy named Woolcot first found fossils there in 1909. He took the fossils he found back to the United States, and they are at the Smithsonian. Nowadays, you have to get permission from Parks Canada to get the fossils. You can click on these links if you want to see pictures of some of the animals. My mom's favourite was Opabinia. It had 5 eyes and a long nose! You can also hear a song called "The Cambrian Explosion Song" here.