Evolution Intelligent Design

When turtle ants rewound evolution’s tape it all turned out different

Spread the love

They kept changing things to suit themselves:

Specialized castes are seen as phenotypic innovations necessary for ecological and evolutionary success in social insects. Nevertheless, how castes evolve adaptively as a lineage fills ecological space has remained unaddressed. Recent work with turtle ants has established that head shape and size in the iconic soldier caste, specialized for nest entrance defense, determine two key aspects of nesting ecology. Here species-level comparative analyses reveal that the evolution of head shape and size is extensively reversible, repeatable, and decoupled within the soldier caste and relative to the queen caste, underpinning the lineage’s diverse nesting ecology. These findings reshape our understanding of caste evolution, rejecting a stable, directional process in favor of a dynamic process of adaptive fitting between phenotype and environment.

Scott Powell, Shauna L. Price, and Daniel J. C. Kronauer, Edited by Jonathan B. Losos, “Trait evolution is reversible, repeatable, and decoupled in the soldier caste of turtle ants” at PNAS first published March 9, 2020 https://doi.org/10.1073/pnas.1913750117 (open access)

Pdf.

It must be difficult to derive lectern-splintering theories when life forms simply adapt to whatever works, with nothing defined.

Hat tip: Pos-darwinista

12 Replies to “When turtle ants rewound evolution’s tape it all turned out different

  1. 1
    Jim Thibodeau says:

    Evidence number 100 million that front loading is a pile of dingoes’ kidneys.

  2. 2
    ET says:

    Your nonsensical innuendos expose you as an imbecile, Jim.

  3. 3
    Seversky says:

    These findings reshape our understanding of caste evolution, rejecting a stable, directional process in favor of a dynamic process of adaptive fitting between phenotype and environment.

    It must be difficult to derive lectern-splintering theories when life forms simply adapt to whatever works, with nothing defined.

    By George she’s got it. Life forms simply adapting using whatever works is what adaptive evolution is all about.

    It’s just a little embarrassing that professional scientists seem not to have grasped it.

  4. 4
    Truthfreedom says:

    @4 Seversky

    Life forms simply adapting using whatever works.

    If it works, that means there is a goal. Namely, adaptation and permanence (telic processes).

  5. 5
    Pater Kimbridge says:

    @TruthFreedom #4

    You mean life continues so it can continue? That’s not a goal, that’s a process.

  6. 6
    ET says:

    LoL! @ seversky:

    Life forms simply adapting using whatever works is what adaptive evolution is all about.

    And it just so happens that breaking things leads to adaptations. But breaking things isn’t going to produce the diversity of life starting from some unknown populations of prokaryotes

  7. 7
    Truthfreedom says:

    @5 Pater Kimbridge

    You mean life continues so it can continue? That’s not a goal, that’s a process.

    ?
    Process: a series of actions or steps taken in order to achieve a particular end.

  8. 8
    Pater Kimbridge says:

    @Truthfreedom #7

    And the end of the life process for an organism is death.
    Is that it’s goal?

  9. 9
    Truthfreedom says:

    @8 Pater Kimbridge
    It is the naturalist who argues that ‘there is no purpose to nature’.
    -Therefore, speaking of something that ‘works’ (helps to achieve a goal), makes no sense.
    But we know that naturalism makes no sense.

  10. 10
    Pater Kimbridge says:

    Truthfreedom #9

    When survival and procreation are the goals for any given generation, it makes perfect sense

    It only stops making sense when you begin inventing nonsensical goals.

  11. 11
    Truthfreedom says:

    @10 Pater Kimbridge

    When survival and procreation are the goals for any given generation, it makes perfect sense.

    Are then survival and reproduction the evolutive ‘goals’?

  12. 12
    Truthfreedom says:

    @10 Pater Kimbridge

    It only stops making sense when you begin inventing nonsensical goals.

    Such as?

    – Sorry, but up to this point, your explanations are proving me right.

Leave a Reply