27 Matching Annotations
  1. Jun 2021
  2. May 2021
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  6. Jan 2021
    1. Johnson: Earlier I interviewed you about patrilocal residence patterns and how that alters women’s sexual choices. In contrast, matrilocal societies are more likely to be egalitarian. What are the factors that lead to the differences between these two systems?Hrdy: I think in societies where women have more say, and that does tend to be in societies that are matrilocal and with matrilineal descent or where, as it is among many small scale hunter-gatherers, you have porous social boundaries and flexible residence patterns. If I had to say what kind of residence patterns our ancestors had it would have been very flexible, what Frank Marlowe calls multilocal.

      Matrilocality, matrilinearity and egailitarianism.

  7. Nov 2020
    1. Previously, we and others have shown that the inclusion of an antitoxin and the careful balancing of toxin and antitoxin expression levels across relevant conditions can mitigate this effect, resulting in a kill switch that is evolutionarily stable over biologically relevant periods
  8. Aug 2020
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  12. Mar 2020
    1. demonstrate that adapting a strain to the intended growth condition increases fitness and in turn improves the stability of the engineered function over hundreds of generations

      Does this imply that an organism taken from a native environment, modified with a plasmid and re-introduced is likely to be stable?

  13. Feb 2020
    1. there is littleelse on this list which can be considered part of a life history strategy if ‘life history’ is meant to be anchored in evolutionary biological research

      Isn't altruism, the willingness and ability to sacrifice for kin, the rate of drop-off of willing altruism, etc all directly connected to evolutionary biology?

  14. Dec 2019
    1. a few simple design principles: high expression of genetic circuits comes with the cost of low evolutionary stability, avoid repeated sequences, and the use of inducible promoters increases stability. Inclusion of an antibiotic resistance gene within the circuit does not ensure evolutionary stability.
  15. Nov 2019
  16. Jan 2019
    1. Alternatively, one could postulate that a general cognitive ability is a Western trait but not a universal trait among humans, but this would require an evolutionary model where this general ability evolved several times independently throughout the mammalian clade, including separately in the ancestors of Europeans after they migrated out of Africa and separated from other human groups. Such a model requires (a) a great deal of convergent evolution to occur across species occupying widely divergent environmental niches and (b) an incredibly rapid development of a general cognitive ability while the ancestors of Europeans were under extremely strong selection pressures that other humans did not experience (but other mammal species or their ancestors would have experienced at other times). We find the more parsimonious model of an evolutionary origin of the general cognitive ability in the early stages of mammalian development to be the more plausible one, and thus we believe that it is reasonable to expect a general cognitive ability to be a universal human trait.

      It was this reasoning that led to the decision to conduct this study. There is mounting evidence that g exists in other mammalian species, and it definitely exists in Western cultures. It seemed really unlikely that it would not exist in non-Western groups. But I couldn't find any data about the issue. So, time to do a study!

  17. Jun 2016
    1. What’s more interesting, I think, is similarities between ecology/evolutionary biology and the humanities. Stephen Jay Gould pointed out many years ago that some lines of scientific inquiry were more like historical research than “real” science. That idea has stayed with me throughout my career, which I think is why I’ve such an interest in how a historical perspective informs our present day understanding of the subject.

      note on how evolutionary biology is really a humanities subject, attributed to Stephen Jay Gould