Something is going on under the sea? 海で何か起こってる？

ボストンの近くの海で数十頭のイルカが打ち寄せられてるのが見つかったそうだ。。
その前にもつい最近ＮＺでオットセイが打ち上げられているという記事を読んだ。
その記事が目に付いたのは、
ちょうど今年初め、
日本でも鯨が海岸に打ち寄せられ死んでいたという記事をたて続けにみたので
海で何かが起こっているのでは。。。と気になっていたから。。。
同じようなことがあちこちで起こっていたらやっぱり何かある。。。と思わない？

原因は放射能汚染とも考えられるし、
何かの予兆とも。。。
考えすぎかもしれないけど、
でも自然は私達にサインを送っていると思うので
やっぱり何かある。。。と思ってしまう。。。

This news is from CNN that number of dolphins(, 40...50...or more?)
were found washing up the shore close to Boston in Massachussets.
Some were dead and some were rescued.
http://edition.cnn.com/2012/01/16/us/massachusetts-dead-dolphins/index.html?hpt=hp_t3

And, this is another news from New Zealand that 53 of fur seals were dead in the same situation. Washing up the shores...
http://australianetworknews.com/story.htm?id=46153

In Japan, there were 2 different incidents occured past 2 weeks,
one was in Niigata and other was Kanagawa prefecture.
They both are the similar stories that  a dead body of young wale was found on the shore. The cause was not known but the situation was like this that a young wale was washing up on the shore first and dead.

May be it is just coincident but I feel more than that...
It was coincident they all categolized in mammals....

It was just a natural fenomenon...
Even so, I feel like there is something...

Radioactive waste did that?
If so, there should be more species could have been affected...
Or if this is just a beggining of sean, I shouldn't concluded...

If this is sign of grobal warming,
I can assume there something going on under the sea....

Does it?...