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Cedar Rapids Gazette in Cedar Rapids, Iowa

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Newspaper

Cedar Rapids Gazette

Location

Cedar Rapids, Iowa, United States of America

Date

Jun 09, 1969

Page

14

Do identical twins differ in intelligence and alcoholism

Dr Sylvanus Duvall discusses that identical twins reared apart show similar initial potential but inheritance shapes capacity. He notes public attitudes toward alcoholism have shifted but intelligence remains largely fixed by genetics, with drinking long seen as health not moral failing.

Arboretum Habituation Study Improves Plant Behavior

A field trial at the Arboretum reports habituation of target plants to routine disturbances. Researchers observe reduced stress responses and more stable growth after eight sessions, suggesting refined handling improves long term resilience.

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