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Home > Iowa Academy of Science > Journals & Newsletters > Proceedings of the Iowa Academy of Science > Volume 24 (1917) > Annual Issue

 

Document Type

Research

Abstract

According to the plan of nature animals are compelled either directly or indirectly to lay under tribute the plant world in order to obtain food; and so completely have they done so that it is doubtful if any, among the many thousands of species of the latter, are exempt from attack. Being thus exposed to the wholesale appetites of higher creation plants have been forced into the evolution of devices for warding off animal attacks.

Publication Date

1917

Journal Title

Proceedings of the Iowa Academy of Science

Volume

24

Issue

1

First Page

323

Last Page

326

Copyright

©1917 Iowa Academy of Science, Inc.

Language

en

File Format

application/pdf

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