Top 8 Deadliest Sea Monsters Who Are Believed To Have Existed

Do you know the deadliest top 8 monsters of the sea who are believed to have existed? Watch this video and hope not to face them ever in your life.

Ocean is more mysterious than one can imagine. It has thrown many surprises at us by showing us the kind of creatures that prevail inside it. Today whale and sharks are considered as the most dangerous species inside the ocean but did you know that there existed much more deadly and huge creatures than them. Watch out this video to go back in time and see what an ocean had in store many years back.