This is cool. Some scientists found a fossil of what appears to be the oldest footprints ever discovered (500 million years). And in Canada no less! http://cbc.ca/stories/2002/06/06/fossil_tracks020606 Does anyone think we will ever live under the sea? What if humans pass the carrying capacity of the Earth before colonizing other planets? Do you think we could develop underwater societies? Maybe we could grow crops on the ocean floor! It would be fun, and it wouldn't ever rain Please Register or Log in to view the hidden image!