17 February 2012 Updated at 07:03 ET
Sea lion test to probe declines
Pallab Ghosh
Science correspondent, BBC News, Vancouver
Professor Andrew Trites from the University of British Columbia talks about the study of sea lions
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Canadian researchers have trained sea lions to take part in an experiment designed to find out why the species is dying out.
link-
http://www.bbc.co.uk/news/science-environment-17051429