https://www.sciencefocus.com/planet-earth/earths-oceans-not-blue
Nov 27, 2025 - Several billion years ago, tiny little creatures called cyanobacteria may have changed the colour of the ocean.
earth shave beenprehistoricoceansmay
https://prehistoric-earth-a-natural-history.fandom.com/wiki/Mosasaurus
Mosasaurus (Name meaning "Lizard of the Meuse River") is the type genus of the mosasaurs, an extinct group of aquatic squamate reptiles. It lived from about 82...
prehistoric earthnatural historywiki fandommosasaurus