[pyx]

That's pretty interesting fact. (seriously) Any web sites with more info on deep diving whales and what they eat and their behavior ? I seem to recall hearing from someone that Sperm whales have teeth and have on occasion been aggressive with small fishing boats but I don't know if that's a sea myth or not.

[ForOurFuture]

I seem to recall hearing from someone that Sperm whales have teeth and have on occasion been aggressive with small fishing boats but I don't know if that's a sea myth or not.

Sperm whales do have teeth, but I have never heard of aggression towards boats. Strangely enough, I just happened to be thinking of this sound thing earler today. It was on some Discovery show, and they played a recording of it. While the article seems fairly adamant that no known animal could make the noise, whales can generate very powerful sound. I recall an incident where an underwater diver was temporarily stunned by the call of a baby sperm whale. It is suspected that Sperm whales may use sound as a weapon to stun squid. Also, it is believed that some whales can communicate over hundreds of miles using powerful sound.