id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
ssh-981	Yuan, Yu 	Fiber Art of Emotional Changes in the Pupil	2022	4	.pdf	application/pdf	2027	116	65	1.3 The color of the pupil At the beginning, because the genes were the same, everyone on the earth had brown eyes, but with the migration of human beings, after they all went to different places in the world, in order to BCP Social Sciences & Humanities HASS 2022 Volume 18 (2022) 214 adapt to the different natural environments and lifestyles in different places, gradually The changes in the genes that affect the skin color and pupil color, so that the color of the human pupil has changed. Differences in pupil shape are a good indicator of evolution and natural selection in ecological environments.	cache/ssh-981.pdf	txt/ssh-981.txt