Some remarks concerning near-zero g experiments on living systems

Abstract

In the case of animal systems, gravity probably plays an important role only during early development; this has to do with the determination of embryonic polarity. At other times in the life of an animal, gravity is a hindrance. If animals are to be sent into space, it is clearly necessary to study the effect of zero g on their physiology and behaviour. This apart, there seems to be no basis for thinking that biological experiments conducted in outer space might yield interesting insights into how living systems work.