Creating Waves of Awareness
I'm in shock that this film was produced by Canadian Government for general broadcast. National Film Board of Canada.
This reminds me of "This is Your Brain on Drugs"
So, basically, if these items can effect a spider to such a degree, do you imagine that they can also effect humans? It is true that certain substances will harm one living organism and not another. For instance, you can't give chocolate to dogs.
Sorry for the profanity.