Worm’s rear end develops its own head, wanders off to mate

Worm’s rear end develops its own head, wanders off to mate

Enlarge/ From left to right, the head of an actual worm, and the stolon of a male and female. 13 Some do it horizontally, some do it vertically, some do it sexually, and some asexually. Then there … [+3978 chars]

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