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Science 5 September 1997:
Vol. 277. no. 5331, pp. 1421 - 1423
DOI: 10.1126/science.277.5331.1421
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Letters

This Week's Letters

A "parsimonious conclusion"

Astronomers discuss how giant planets like Jupiter could form during "the dissipation of gaseous disks about young stars." (Right, a model of a protoplanetary disk, 20 astronomical units in diameter, with a gaseous protoplanet forming at the edge, indicated by yellow and green.) A reader concludes that it is likely that Early Permian insects actively consumed "nutritionally rich pollen." And it is said that "a series of genes," not just one, was probably involved in the evolution of "a tail in primitive vertebrates."

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Volume 277, Number 5331, Issue of 5 September 1997 pp. 1421-1423.
©1997 by The American Association for the Advancement of Science.

Letters in This Issue

space space
[Letters] Young Stars and Giant Planets
Ben Zuckerman
Alan P. Boss
[Letter] Tail Evolution
Claus Nielsen
[Letter] Permian Pollen Eating
Conrad C. Labandeira
[Letter] Corrections and Clarifications




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Science. ISSN 0036-8075 (print), 1095-9203 (online)