The instrumental value of a species is the value it has to other animals, including human beings. The instrumental value of a species should not be considered when placing it on the endangered species list -- the intrinsic value of the species (the value the species possesses in its own right) is the more important consideration. If we only considered the instrumental value of species, species that are not considered "useful" could go extinct. If the definition of "useful" changes over time, it might have proven to be a mistake to not protect a particular species!
Nov 14th, 2014
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