Research NewsPaleontology

When Evolution Surges Ahead

See allHide authors and affiliations

Science  24 Oct 1997:
Vol. 278, Issue 5338, pp. 577
DOI: 10.1126/science.278.5338.577

You are currently viewing the summary.

View Full Text

Log in to view the full text

Log in through your institution

Log in through your institution


While paleontologists debate whether the evolutionary turnover of species ever slows toward stasis (see main text), many studies of ancient marine animals show that every few million years, it can speed up dramatically. Now the question is what triggers these surges.