Acidity proves a problem for snail

Scientists have said acidity is eating away the shells of tiny snails living in the seas around Antarctica

Source: http://rss.skynews.com.au/c/34485/f/628641/s/25f33ee9/l/0L0Sskynews0N0Bau0Ceco0Carticle0Baspx0Did0F820A2980GvId0F/story01.htm

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