Although we see the mermaids today mostly as a part of popular culture and folklore remnants of ancient times, mythology surrounding mermaids has managed to influence some of the earliest human civilizations and change the way we look at the mysteries and dangers that are hidden in the unexplored sea. Because of the undeniable romantic traits, similarity to the human form, and religious view toward the sea, mermaids managed to remain the part of our history as one of the most famous mythical creatures that lived in the water (both sea and fresh water). However, as the sea was not always kind to the early sailors, myths about dangerous sea creatures influenced mermaids and for some cultures they become the omens of danger and destruction. These more dangerous versions called sirens soon became mixed in our culture with more benevolent mermaids, making them both friendly and incredibly dangerous.