Even when demonstrator hens reacted with obvious disgust to a specific food, via vigorous head shaking and bill wiping, there was no evidence that observers subsequently avoided eating that food.
In some cases, industrial giants faced with little or no competition seek to avoid the capital loss resulting from obsolescence by deliberately obstructing technological progress.
Sometimes I wonder about the accidents that happen to a person-car crashes, falling tree branches, fires in the night-and I wonder, were they avoidable or were they destined?
Combination therapy is a deliberate strategy to delay the development of drug resistance, which inevitably happens when any antimalarial drug is widely, and especially, unwisely used.