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Radiocarbon dating stone tools

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C-12 is by far the most common isotope, while only about one in a trillion carbon atoms is C-14.

The closest relative among the other living primates, the genus Pan, represents a branch that continued on in the deep forest, where the primates evolved.

This is an informational tour in which students gain a basic understanding of geologic time, the evidence for events in Earth’s history, relative and absolute dating techniques, and the significance of the Geologic Time Scale.

Researchers have found a reason for the puzzling survival of soft tissue and collagen in dinosaur bones - the bones are younger than anyone ever guessed.

It takes about 5,730 years for half of a sample of radiocarbon to decay back into nitrogen.

It takes another 5,730 for half of the remainder to decay, and then another 5,730 for half of what's left then to decay and so on.