Scientists have found that young oysters depend on the sound of the reef when deciding where to settle in for the rest of their lives.
Mollusks are disappearing fast and 85% of their reefs have been lost due to disease, over-harvesting.
CO2 released into atmosphere causes acidification of oceans.
Oysters are in serious trouble due to high level of CO2, caused by human behaviour.
President Barack Obama's speech at Siri Fort auditorium
Day in Pics: 27th January
Showbiz World - January 27, 2015