have been continuing to read from Jack Kruse' blog, and in this one, he again mentions sharks. Some people may be aware of the fact that sharks do not get cancer, and there is something special in their cartilage that is anticancer.

http://sharkopedia.discovery.com/shark-topics/shark-senses/#sharks-can-hear-the-low-frequency-sounds-of-dying-fish

Well, there is another interesting fact about sharks, and this shines a light on why sharks attack humans. The link at the top describes how sharks have senses that can detect the signature of a dying animal. Smelling blood is in fact consequential, not causal, in how a shark chooses what it chomps on.

Sharks are scavengers, not hunters, and the fact they can sense a dying animal is nearby, is very strong evidence that this is their evolutionary function in the ocean ecosystem. And this sense, which detects very low voltage EMF emitted by living things, which is different when the energy of the animal is acutely dissipating as happens when it is dying.

So, in fact, people who are victims of shark attacks - as far as the shark can tell, the human is dying, as in the way you would be if you had hypothermia, or you were bleeding out. Yet we walk around as though we are alive...

There is one more factor involved also, aside from the fact that modern humans seem to a shark to be dying animals, and that is radio frequency interference from our electrical and radio systems. This interference can blind this sense in the shark, that would make it reject a human as a valid food source (since ostensibly it is not dying) and the result is a shark attack.

Jack Kruse, whose thinking processes seem to be a lot like mine, does at times seem a bit muddled in his way of expressing what he's talking about, but the insights he has had about how living things work, and especially our bodies, are blowing my mind, and I cannot strongly enough recommend you read it