Sharks swam Earth's oceans before trees grew
Sharks have thrived for over 450 million years, appearing 75 million years before trees and surviving five mass extinctions with remarkable adaptations.
Sharks have navigated Earth's oceans for over 450 million years, predating trees, dinosaurs, and even winged insects. The earliest sharks appeared 75 million years before the first trees evolved, making them an incredible success story. They've survived five mass extinction events that wiped out most life on Earth.
There's more to this story — open the app to keep reading.
Continue Reading in App
1 more paragraphs · plus a 3-question quiz