Greenland sharks have existed for hundreds of millions of years through their ancient lineage while Saturn’s iconic rings are believed to have formed far more recently, possibly only 10 to 100 million years ago.
That means sharks were already swimming in Earth’s oceans long before Saturn wore its most famous feature.
Ohh that’s a cool one. Image earth with life but no trees.
I don’t understand this to mean “without plants.” Sharks still need oxygen.
Plankton photosynthesizes too.
That’s how it was for 90% of life existence. Trees are recent.