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CONTINGENT IRREVERSIBILITY EXAMPLE 5. "The reversion from sex to parthenogenesis. Mammals are never parthenogens, probably because, at some loci in some tissues, only the allele inherited from the father is active: hence, in an embryo with no father, some essential gene activities are missing." https://lnkd.in/eZ5-m7K View in LinkedIn

INFORMATION. "Developmental biology can be seen as the study of how information in the genome is translated into adult structure, and evolutionary biology is how the information came to be there in the first place." https://lnkd.in/eZ5-m7K View in LinkedIn

CONTINGENT IRREVERSIBILITY EXAMPLE 4. "The reversion from sex to parthenogenesis." https://lnkd.in/eZ5-m7K View in LinkedIn

"A CENTRAL IDEA in contemporary biology is that of information." https://lnkd.in/eZ5-m7K View in LinkedIn

CONTINGENT IRREVERSIBILITY EXAMPLE 3. "Worker bees may lay male eggs, but cannot establish a new colony on their own." https://lnkd.in/eZ5-m7K View in LinkedIn

POWER OF GRAMMAR. "The emergence of human language with a universal grammar and unlimited semantic representation. Grammar enables a speaker with a finite vocabulary to convey an indefinitely large number of meanings, just as the genetic code enables DNA to specify an indefinitely large number of proteins." https://lnkd.in/eZ5-m7K View in LinkedIn

CONDITIONS FOR COOPERATION. "If cooperation is to evolve, non-additive or synergistic, fitness interactions are needed...but the dangers of intragenomic conflict remain: both relatedness and synergistic fitness interactions are likely to be needed." https://lnkd.in/eZ5-m7K View in LinkedIn

GORILLA PORTAL. "Comparative analysis of the human, anthropoid, and other primate feet clearly indicates that the foot of man was evolved from a grasping, arboreal type such as is peculiar to the modern great apes. Furthermore, the great ape or gorilloid type of foot presents an intermediate stage in structural and functional modification through which, of necessity, the evolutionary development of the human foot had to pass." https://lnkd.in/eXEMMAm View in LinkedIn

THE FAIRY STORY. "It all used to seem so simple. The human lineage evolved in Africa. Only at a relatively late date did early humans finally migrate from the continent of their birth, in the guise of the long-known species Homo erectus, whose first representatives had arrived in eastern Asia by around one million years ago." https://lnkd.in/ejdbPT4 View in LinkedIn

NOT DESIGNED FROM SCRATCH. "The origin of our feet dates back to lobe-finned fishes, and has evolved into five-rayed, weight supporting structures since." https://lnkd.in/esuQhhw View in LinkedIn