Talking With Aliens
Dolphins are well known to be intelligent, but scientists now believe that they could hold the key to communicating with aliens.
Their complex, well-formed communication system is more or less alien to us, so understanding it could help us get that bit closer to any future extraterrestrial visitors.
This theory forms the basis of a fascinating documentary, illustrating amply why some scientists believe our aquatic friends to be far more intelligent than was first thought.
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