06:14
Building Blocks: Ancient Fossils, Modern Technology
As scientists work to answer vexing questions about the origins of life, they examine the fossilized remains of the primitive life forms which at one time populated early Earth. The challenge in doing this is not only a function of the age of the fo...
01:31
Making the Pieces Fit: Coastlines and Jigsaw Puzzles
The scientific work that would eventually lead to the Theory of Plate Tectonics began with observations that the coastlines of Africa and South America are strikingly similar.