When We First Walked | Eons

PBS Learning Media
Contributed By
PBS Learning Media
Resource Type
Classroom Material
Keywords
pbs digital studios eons science humans human evolution Laetoli Tanzania Laetoli footprints Plio-Pleistocene Pliocene Pleistocene Epoch Mary Leakey human species speciation hominins hominids history of life ancient life origins of life geologic eras geologic periods geologic time geological history life on Earth geology natural history paleontology ancient life fossils fossil record evolution tree of life common ancestor
Subjects
Science
Grade Levels
Grade 9 Grade 10 Grade 11 Grade 12
Related Resources

When We First Walked | Eons

Fossilized footprints have proved that human ancestors were already striding across the landscape 3.6 million years ago. But who started them on that path? What species pioneered this style of locomotion? Who was the first to walk?
Publisher
PBS Learning Media

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