Coco the gorilla talked with her hands. My cat reprimands me with judgmental glares. But does animal communication go deeper than that? 

The debate over how much animals understand and communicate has raged for decades, but the idea that complex language could develop in non-human species hasn't been a popular one until recently. Do animals have a hidden world of words? Or would decoding their barks be more like a moment from Far Side?

Ss explores.

_{Host: Brit Trogen}

_{Photo credits: PNAS, Bjørn Christian Tørrissen, nickandmel2006, NASAs and Mark Interrante}

_References:

_{http://www.time.com/time/health/article/0,8599,2008759,00.html}

_{http://www.nytimes.com/2009/12/08/science/08monkey.html}

_{http://www.livescience.com/animals/070306_whale_whisperers.html}