Ron Douglas on deep-sea vision

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Ron Douglas is Professor of Visual Science at
City University and an expert on the biology of deep-sea creatures.
He talks to the Wellcome Trust's Daniel Glaser about
how vision works 4000 metres down.
This packed lunch event was recorded live
on 9 November 2011 at Wellcome Collection.
Image:
Deep-sea chimaera by NOAA Ocean Explorer on Flickr.