The recent outbreak of Pfiesteria, a microorganism 1,000 time more potent than cyanide, spawned from millions of gallons of raw hog feces and urine, poured into rivers, lakes, and oceans, turning their ecosystems into unflushed toilets,
Azkenean, naturak sentipenen iturri bat eman die ezer ere ez sentitzeko? Edo animaliek nerbio sistema dute, ez sentitzeko? Arrazoiak, erantzun hobea exijitzen digu.