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Giant, near-perfect cloud ring appears in the middle of the Pacific Ocean — Earth from space
A 2014 satellite image captured a rare glimpse of a massive, eerily circular ring of clouds that formed slap-bang in the ...
PBS8y
Convergent Evolution:
In the frigid waters of the ocean surrounding Antarctica ... This is a dramatic example of convergent evolution, when organisms that aren't closely related evolve similar traits as they both ...
PBS8y
The Continental Slide
In locations around the world, ocean crust subducts, or slides under, other pieces of Earth's crust. The boundary where the two plates meet is called a convergent boundary. Deep trenches appear at ...