Aquatic playground can turn water tanks into fish schools

[unable to retrieve full-text content]Raising fish in tanks that contain hiding places and other obstacles can make the fish both smarter and improve their chances of survival when they are released into the wild, according to scientists.

Source: http://feeds.sciencedaily.com/~r/sciencedaily/top_news/~3/vWg_zB0ZT3U/130730193532.htm

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