Subliminal perception is quite different from subliminal persuasion. although we may perceive stimuli that are below the threshold of conscious awareness, they do not necessarily spur us to action. why is that?

The subliminal perception does not go through in depth processing because it is not repetitive or constant as persuasion. Since it is weaker, it does not trigger our behavioral change.

the invasive species was introduced due to commercial purpouses, as there was a demand for fur clothes and hence, a business opportunity connected to this product. actually, it was when the nutrias scaped, causing harm to the us ecosystems when they acquired the status of invasive species. in this case they have caused an environmental problem, but it could have affected also economic interests or even human health.