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The photoperiodic response of the testis in Anolis carolinensis is very temperature-sensitive. Body temperatures must be elevated to near preferred levels (about 32°C) during at least part of the daily light period for long day-lengths to be effective in stimulating testicular recrudescence. High temperatures during the night, with cool days (20°C), may retard testicular growth more than do continuously low temperatures.
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Paul Licht (1966) studied this question.
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