Cloning humans

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Cloning humans? Biological, ethical, and social considerations.

There are, in mankind, two kinds of heredity: biological and cultural. Cultural inheritance makes possible for humans what no other organism can accomplish: the cumulative transmission of experience from generation to generation. In turn, cultural inheritance leads to cultural evolution, the prevailing mode of human adaptation. For the last few millennia, humans have been adapting the environme...

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Lice, Humans, and Microbes

Lice are small, wingless, minor ectoparasites of mammals and birds. More than 540  blood-sucking lice (Phthiraptera: Anoplura) have been described with each host having its own type of louse, suggesting the cospeciation of the lice species with their host. Among these, two lice species from two different genera infest humans: Pediculus humanus and Phthirus pubis (pubic “crab” l...

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ژورنال

عنوان ژورنال: Nature

سال: 1997

ISSN: 0028-0836,1476-4687

DOI: 10.1038/387119d0