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Science

Big Blue Marble

(5,610 posts)

2. Thanks

Reply to Judi Lynn (Original post)

Thu Mar 6, 2025, 11:01 PM

Mar 6

Fascinating App! I have tiny fossil shells in my yard and knew that at one time we were
"under water." Now I know when and for how long. Much farther back in time than I would have guessed.

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Highlight:

This Map Lets You Plug in Your Address to See How It's Changed Over the Past 750 Million Years [View all] Judi Lynn Mar 6 OP

Arthur Dent didn't need it! Bok_Tukalo Mar 6 #1

Thanks Big Blue Marble Mar 6 #2