Even before reading their article, it could be guessed (correctly, as it turned out) that the 90 percent threshold was more an artifact of how the data were selected and grouped rather than anything resembling a natural law.
In addition to continued support for systematic biological monitoring, a particular effort is being made at a selected number of sites to analyse the socio-economic and cultural dynamics of natural resource use.
The origin of the blue-chip meteorite market was a 1995 natural history auction at Phillips in New York, for which an entertainment manager named Darryl Pitt selected some 15 meteorites from his personal collection and photographed them as if they were masterpieces of modern art.