Scientists are in the Gulf of Mexico. They are researching.
They have a submarine robot. This submarine is 600 meters below the surface. A sperm whale comes close to the submarine. The submarine films the whale. The scientists are happy to see the whale.
Sperm whales are intelligent. They are curious, too.
Difficult words: research (to study something), submarine (a machine which can move under the water), curious (when you want to know about things).
