Full Idea
The question of which natural kind a thing belongs to ....can be answered only in relation to some specification of the goal underlying the intent to classify the object.
Gist of Idea
Natural kinds are decided entirely by the intentions of our classification
Source
John Dupré (The Disorder of Things [1993], Intro)
Book Reference
Dupré,John: 'The Disorder of Things' [Harvard 1995], p.5
A Reaction
I don't think I believe this. The situation is complex, and our intents are relevant, but to find an intent which no longer classifies tigers into the same category is wilful silliness.