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| Animal Behavior | 3 |
| Zoology | 3 |
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| Scientific Research | 2 |
| Behavior Change | 1 |
| Behavior Development | 1 |
| Biological Influences | 1 |
| Biology | 1 |
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| Environmental Influences | 1 |
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| Science | 3 |
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| Journal Articles | 2 |
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Peer reviewedKolata, Gina Bari – Science, 1975
Presents the idea that social systems evolve to increase the genetic fitness of individuals in specific environments. Cites examples of animal behavior and environmental influences that may indicate why different social systems have evolved. (GS)
Descriptors: Animal Behavior, Biology, Environmental Influences, Evolution
Peer reviewedVorhees, Charles V.; And Others – Science, 1979
A test is described in which three psychotropic drugs were evaluated for their effects on pregnant rats. Behavioral changes are given. (SA)
Descriptors: Animal Behavior, Behavior Change, Behavior Development, Laboratory Experiments
Peer reviewedWerren, John H. – Science, 1980
This study discusses the behavior of the females of the parasitic wasp Nasonia vitripennis, which adjust the sex ratio of their broods according to whether or not they are the first or second wasp to parasitize a host. The results provide a quantitative test of sex ratio theory. (Author/SA)
Descriptors: Animal Behavior, Biological Influences, Entomology, Evolution
