ENVIRONMENT
05/27/2014 08:44 am ET Updated May 27, 2014

Building One Dam May Wipe Out This Entire Rare Dolphin Population

There are only 85 Mekong River Irrawaddy dolphins left now, and they are clinging to survival. Already decimated by gillnets that catch individuals and cause them to drown, the population is facing an even larger threat -- this one is made of concrete.

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