Some parts of the sea are saltier than others. The Atlantic Ocean for example has two huge deserts of extra salty water. To see which parts are saltier than the other, NASA's Aquarius instrument aboard Argentina's Aquarius/SAC-D spacecraft released the first year of data.
You can see it in the image above, red and orange areas are very salty, while green and blue areas are less so.
The advancements in robotics is getting serious. Now, MIT's robot cheetah can chase you down, while it runs on its own power. Also, it can jump, so don't think walls or fences will stop it. Watch the video below: Read more