What will you actually find at the end of every rainbow?

nothing

Explanation:

A rainbow is a special phenomenon that occurs in nature when it is rainy on one side, but sunny on the other. It consists of an arc that forms in the sky of seven colours, namely Violet, Indigo, Blue, Green, Yellow, Orange and Red, also called VIBGYOR for short.

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.