Musings of a Political Scientist

All posts tagged evolution

Uranium Lead Dating the Earth
Uranium-lead dating computes the age of the earth at 4.54 billion years old with less than 1% margin of error. It is one of the oldest and most refined radiometric dating schemes, with a routine age range of about 1 million years to over 4.5 billion years. Read more

Human Migration Map Relative to Last Ice Age - Rise of Human Civilization
Humans originated in Africa about 200,000 years ago, but now they inhabit every continent, with a total population of over 7 billion as of 2013. Read more