What's killing whales in Gulf of St. Lawrence?

[ahlam1399]

http://img-s-msn-com.akamaized.net/tenant/amp/entityid/BBDmrYF.img?h=100&w=100&m=6&q=60&o=f&l=fThe sudden deaths of right whales in the **rth Atlantic Ocean has a team of government scientists and marine conservationists searching for answers. Ross Lord reports.

أكثر... (http://www.msn.com/en-ca/news/newsvideo/whats-killing-whales-in-gulf-of-st-lawrence/vi-BBDmppy?srcref=rss)