Recent Developments

The Earth is very old, more than 4.5 billions years by current reckoning.  But what’s been going on here in say the last (mere) 200 million years?

Well, other than the extinction of the dinosaurs and the rise of mammals, including our species (which almost went extinct), quite a bit of land mass movement.

Click the image above to see the breakup of the supercontinent Pangaea into today’s seven continents.  It’s fascinating in general, but watch for Madagascar and India to split off from the Antarctic region, then split again, on their ways to their current locations.  Also watch for Cuba to migrate from the Pacific Ocean to its current place before the Panamanian isthmus closes.

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Author: Bob Mahoney

Physics teacher

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