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XKCD - A webcomic of romance, sarcasm, math, and language.

These rocks are from a time before eyes, brains, and bones, pieces of a land warmed by an unseen sun.

View details for Proterozoic Rocks

Created at

11/6/2024

Title

Proterozoic Rocks

Order number

3008

Created at

11/6/2024

Link to post

https://xkcd.com/3008

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