Darwin

Biochemical warfare is as old as creation. It is nature's gift to the weak and the vulnerable against threats, real or perceived. Millions of years of evolution have armed legions of plants, insects, fish, reptiles, amphibians and invertebrates with the means to neutralize enemies with vile-smelling, bad-tasting, paralyzing or lethal substances. This is survival of the fittest at its Darwinian best.