Two friends visit the Museum Of Natural History and take a ride into the distant, and not so distant, past. Their travels through time reveal the ways that humans have had an affect on the environment. The two children also learn how the lessons learned from those past mistakes have helped humanity realize that we need to be better stewards of the earth. Written by Robin MacBlane, this story first appeared on the Robin And The Giant radio show in the early 1990s. It is published in the book "The Gift Of The Barking Frog."

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