Do dolphins really rape and murder within their societies?

I was reading the answers to a question I had just answered and one of the replies on the first page was: Dolphins rape and murder within their societies, one of the few animals besides humans to do so. I wasn't sure of this, but that is a VERY interesting fact. I'd like to know if it's really true. So if... show more I was reading the answers to a question I had just answered and one of the replies on the first page was:

Dolphins rape and murder within their societies, one of the few animals besides humans to do so.

I wasn't sure of this, but that is a VERY interesting fact.
I'd like to know if it's really true.
So if you could help me out on that then thanks!


Here's the question if you wanna view it...

http://answers.yahoo.com/question/index?qid=20080831133759AAbEM8S
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