Can you even imagine trying to take a census of marine life in the oceans, etc.?
As difficult as it is for humans to be counted in a census, it would seem impossible for all marine life to be counted or found out about.
A new study has attempted to try and answer some issues surrounding marine life, etc. And they have come up with some very interesting information.
http://news.yahoo.com/s/ap/20101004/ap_ ... e_census_4