Imagine the loneliness of speaking a language that only you can understand. Researchers have been studying a whale, who communicates in a language not recognizable by other whales. This whale has spent over two decades looking for a friend who will understand him.
Imagine entering a world hidden from the naked eye. From where you stand, everything looks normal. Cars roll by, people cross the street, but then suddenly you see a face pop up from underground. Just as quickly as it appears, it vanishes.