WEBVTT 00:11.700 --> 00:15.033 By 24 weeks the eyelids reopen 00:15.067 --> 00:19.733 and the fetus exhibits a blink-startle response. 00:19.767 --> 00:22.233 This reaction to sudden, loud noises 00:22.267 --> 00:26.967 typically develops earlier in the female fetus.