<meta http-equiv="refresh" content="1; url=/nojavascript/">
Dismiss
Skip Navigation

Timeline of Evolution

Describes the geologic time scale and the basic timeline of the 4.6 billion-year-old Earth.
%
Progress
Practice Timeline of Evolution
Practice
Progress
%
Practice Now
New Evidence Revises Thinking: Anomalocaris
Demonstrates the challenges paleontologists face to recreate ancient animals from fossil pieces, much like trying to solve a jigsaw puzzle without knowing the final picture.

Reviews

Please wait...
Please wait...

Original text