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Những chú ốc sên đáng yêu trong buổi sớm
27 Nov, 2017
vặn/quay bộ phận sinh dục ngoài để có thể giao phối mặt đối mặt... :)
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Most snails have a right-handed spiraling shell, but some have a left-coiling shell
But the genitals of 'lefty' snails are on the opposite side of their head
So it was thought normal 'face-to-face' mating was difficult or impossible
However, new research has revealed instances in a Japanese snail where the two types can overcome this barrier by twisting their genitals to mate face-to-face
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