Comment on

• Starch grains reveal early root crop horticulture in the Panamanian tropical forest.

  Piperno DR, Ranere AJ, Holst I, Hansell P. Piperno DR, et al. Nature. 2000 Oct 19;407(6806):894-7. doi: 10.1038/35038055. Nature. 2000. PMID: 11057665
• An artificial landscape-scale fishery in the Bolivian Amazon.

  Erickson CL. Erickson CL. Nature. 2000 Nov 9;408(6809):190-3. doi: 10.1038/35041555. Nature. 2000. PMID: 11089970