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Comp Biochem Physiol A Comp Physiol. 1988;90(1):5-10. doi: 10.1016/0300-9629(88)90997-8.

Possible evolutionary futures for mankind.

Comparative biochemistry and physiology. A, Comparative physiology

G A Kerkut

Affiliations

  1. School of Biochemical and Physiological Sciences, Medical School, Southampton University, England.

PMID: 2900106 DOI: 10.1016/0300-9629(88)90997-8

Abstract

1. With the development of techniques of gene transfer, human genetic defects such as sickle cell anaemia, phenylketonurea, cystic fibrosis, haemophilia, Huntington's chorea, etc. will be eliminated. Ninety nine percent of humans in the year 2500 will be much the same as at present, but healthier. 2. Studies of Comparative Biochemistry and Physiology show that many strategies have been developed in the Animal Kingdom that could be advantageous in furthering human survival. Some of these strategies are discussed in the present article. 3. Commensal algae that will live in the epidermis of domestic animals (pigs, goats, cattle) will be developed enabling these animals to live in dry environments with minimal demands for food and water. Once successful in domestic animals, the algae could be adapted to live in some humans, i.e. the "Green Man". 4. Commensal protozoa and bacteria that digest cellulose and lignin will be developed so that they can live in the human gut and convert the material to sugars, volatile fatty acids and amino acids that can be absorbed and metabolized by Man, thus making many inexpensive vegetable food resources available. 5. Mammalian embryos will be able to develop through to full term in vitro in a cleidoic egg; and the in vitro fertilized egg will have to depend on finding a surrogate mother. 6. Some people will have an altered pattern of sexual activity. Many patterns will be available; one suggested here is of protogynous hermaphroditism, i.e. the individuals would be female for the first 30 years of life and male for the remaining years.(ABSTRACT TRUNCATED AT 250 WORDS)

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