Orca: The Finest Entity in the Blue
Orca is the only oceanic creature that doesn't have any natural predators; in other words nothing can be threat to the marine animal except for human beings. The strongest entity in the ocean even kills great white or large whales twice its size. As looking at the bony framework of the creature, the anatomy might reminds you of oceanic dinosaurs; it is too hard to imagine the anatomy from orca's usual look.
A wild orca imitates a boat's motor sound to be friend with people.
Cat and Dolphins