Abstract
In the praying mantis Tenodera sinensis optomorphometric studies show that some components of binocular vision such as the fovea and the visual field undergo postnatal development. Unilaterally blinded animals of all ages show shorter capture distances and so are much less efficient in capturing prey than binocular animals. Young animals, however, are able to compensate for unilateral blinding within a few days; older and adult animals do not have this capability. The results suggest that during a postnatal critical period, the visually guided capture mechanism is not yet hard wired and so can still so adapt to changes in stimuli, permitting the animal to retain optimal capture efficiency.
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