http://wakeup-world.com/2011/11/28/the-discovery-of-dolphin-language/

“Researchers in the US and Great Britain have made a significant breakthrough in deciphering dolphin language in which a series of eight objects have been sonically identified”

Many people think in visual-spatial terms rather than audio-sequential. I know people who think in terms of music, and others who think in colours.
I think in 3D images, and find our human languages (I know a few) woefully inadequate for accurately expressing my thoughts – it’s too slow (low information density) and I’m too slow at drawing (plus 3D drawing has its problems on 2D surfaces).

Anyway, the point is that the article’s assertion that the dolphin way of thinking is fundamentally different to that of humans is simply incorrect. Humans are not all the same.
I envy the dolphins for having worked out a way to communicate that’s fast and descriptive, suitable for their 3D environment. Awesome!