What was the Deep Sea like During Prehistoric Times?

Deep Sea Creatures Exhibit Bioluminescence | Blue Planet | BBC Earth Dark Oxygen Discovered 4,000 Meters Below Sea Level | Shocking Deep-Sea Discovery How Deep The Ocean REALLY Is We've Barely Seen the Deep Sea deep sea creatures #viralshorts #facts #sea #horror Giant Mysterious Sea Creatures Are Hiding in Our Oceans! Why Are 96,000,000 Black Balls on This Reservoir? 5 Monster Waves Caught On Camera Ocean DEPTH Comparison 🌊 (3D Animation) Fish Bait Ball in Open Water | Blue Planet | BBC Earth Top 10 CREEPY Deep Sea Creatures You Didn't Know Existed! Weird Ocean Predators Feed On Plankton | Blue Planet | BBC Earth Mariana Trench: Record-breaking journey to the bottom of the ocean - BBC News Never Jump Into The Ocean or Else THIS Will Happen! #shorts Rare deep-sea anglerfish spotted on ocean's surface for first time Scientists Discover 100 New Species in Deep Sea STOP Ignoring These Mysterious Sea Creatures! First Ever Daylight Footage of the Black Devil Fish (Seadevil Anglerfish) #ocean The Giant Sea Monster Caught by Fishermen The truth behind 'demon-fish' Deep-Sea Anglerfish Surprises Researchers Near Ocean’s Surface Diver's Deep-Sea Octopus Encounter#Marine Friendship#Deep-Sea Encounter#Octopus Interaction