Our planet is over 70% covered by water. And out of all that H2O, two of the biggest bodies are the Pacific and Atlantic Oceans. These massive stretches of salty goodness are home to some of the world's most fascinating creatures, from the tiniest plankton to the largest whales. While we may have given these oceans separate names, they are constantly mixing and mingling with one another, regardless of how we chose to draw our maps. So they meet, but do they actually mix?