What we had failed to understand was that these seasonal humidity environments of the world, the soil and the vegetation developed with very large numbers of grazing animals, and that these grazing animals developed with ferocious pack-hunting predators.
Det vi ikke forstod var, at de sæson-fugtige områder på kloden, jorden og vegetationen udvikledes med et meget stort  antal græssende dyr, og at disse græssende dyr, udvikledes sammen med kobler af glubske rovdyr.