The Meg

The Meg, also known as The Megalodon, is the main antagonist of the 2018 deepwater thriller movie of the same name. It is a fearsome, megalomaniacal, sadistic and extremly massive shark who rules the oceans with an iron fist, and terrorizes anything that stand in his way.

History
The Meg at first attacked a submarine. However, it was so large and unseen, that nobody knew yet what the cause was for the accident of the submarine. The submarine's crew of divers went to find out what caused the accident. They at first blamed a giant squid for doing so, but then The Meg ate the squid.

As the crew rushed back into the submarine, and The Meg came back, Toshi sacrificed himself to that shark.

The crew eventually realizes that The Meg is actually the largest Megalodon to ever live on Earth. The crew dive again and manage to find a megalodon and poison it with a large dose of ethorpine to poison. It is revealed however that the shark which they've killed is another shark, smaller than The Meg itself, and thereafter, The Meg ate it's dead body. The Meg also manages to kill The Wall, Heller and Zhang.

Later, the crew learns that The Meg is intending to terrorize a crowded beach and kill thousands of youngsters near Sanya Bay.

The Meg manages to get near the beach and it's swimmers, and also to scare the people off. The Meg attempts to begin the attack on the swimmers. However, before it could do so, the crew on the submarine use dolphin sounds to attract the shark and keep it away from the swimmers. The Meg then attacks the boat, causing it to explode.

Jonas Taylor, the leader of the diving crew and the film's main protagonist, decides to make The Meg bleed to it's death. He tries to hunt The Meg as Suyin (the Chinese woman of the crew and second mate) backs him up with her own submarine. Taylor's submarine however gets attacked and heavily damaged by The Meg, and thereafter, his submarine cannot move anymore. Taylor swims beneath the fearsome shark, and manages to cut it's stomach open. After that, he swims back to the shark's front and stabs The Meg's head. The blood causes other sharks nearby to smell the injured megalodon. Therefore, the other sharks come and eat The Meg to it's death, leaving nothing but only it's bones.

Trivia

 * It is similar to Jaws. They are both the biggest and most ruthless sharks of their own franchise, and they both intend to cause genocide by consuming or just killing people.
 * The Meg is a perfect example for a Pure Evil animal villain due to it's sadistic and monstrous nature