Abstract
Defining Risk
Highlights
The response to Jeffrey Levinton's letter (28 Mar., p. 1490) is really quite simple and empirical. He says that punctuated equilibrium is a slogan
The test of a good scientific theory is its utility in fostering fruitful empirical research
I have the, perhaps naive, faith that my colleagues in paleontology know the diJfcrencc between science and propaganda. They have tested the theory of punctuated equilibrium, obtaining volumnious and rigorous results both pro and con
Summary
The response to Jeffrey Levinton's letter (28 Mar., p. 1490) is really quite simple and empirical. I have the, perhaps naive, faith that my colleagues in paleontology know the diJfcrencc between science and propaganda. They have tested the theory of punctuated equilibrium, obtaining volumnious and rigorous results both pro and con. My pleasure in the utility of puncruated equilibrium centers firmly upon its role in fostering (for its test) a decade of direct and careful work on rates and patterns of evolution in fossil lineages (2). Lcvinton, who began his career as a paleontologist, might care to have a look back. We arc a magnanimous lot, and gladly greet our prodigal sons
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