Secret Language of Elephants is an interesting story that aired on 60 Minutes on Sunday evening. The video profiles the efforts of researchers to understand the communications of elephants. The researchers are trying to decode the meaning of the sounds elephants make. The video is embedded below.

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Applications for Education
This video may be of interest to anyone that teaches zoology and or lessons about African wildlife. National Geographic has a couple of lesson plans (here and here) that could be supplemented by this video.