Episodes

  • TWiEVO 121: AI imagines viruses
    Jan 8 2026

    Nels and Vincent examines the use of AI and genome language models to design novel derivatives of bacteriophage phiX174.

    Hosts: Nels Elde and Vincent Racaniello

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    • AI design of bacteriophage phiX174 derivatives (bioRxiv)
    • Timestamps by Jolene
    Science Picks

    Nels – NIH official resigns after flap over risks of seasonal flu virus study and The Office of Science and Technology Policy (OSTP) requests input from all interested parties on Federal policy updates that aim to accelerate the American scientific enterprise, enable groundbreaking discoveries, and ensure that scientific progress and technological innovation benefit all Americans.
    VincentOne Plus One Equals One: Symbiosis and the evolution of complex life by John Archibald

    Music on TWiEVO is performed by Trampled by Turtles

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    1 hr and 42 mins
  • TWiEVO 120: Sparkle pony
    Jan 8 2026

    Nels and Vincent explain research which shows that insertion of a retrovirus into the genome regulates a novel color trait in swordtail fish.

    Hosts: Nels Elde and Vincent Racaniello

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    • Retrovirus and swordfish scale color (bioRxiv)
    • Timestamps by Jolene
    Science Picks

    Nels – Some like it hot! A geothermal amoeba sets a new upper temperature limit for eukaryotes and Kara Marshall's talk on history of science/science funding in the US, family connections to medical care, and her own lab's work at Baylor College of Medicine
    Vincent – NIH shake-up to grant decision-making draws concerns of political meddling

    Music on TWiEVO is performed by Trampled by Turtles

    Send your evolution questions and comments to twievo@microbe.tv

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    1 hr and 46 mins
  • TWiEVO 119: Drive fast, take chances, and encode a Y chromosome
    Nov 4 2025

    Nels and Vincent explain research attempting to explain why among humans, females around the world live on average 5 years longer than males, but the trend is reversed in many birds, amphibians, and insects.

    Hosts: Nels Elde and Vincent Racaniello

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    • Sexual selection drives sex difference in adult life expectancy (Sci Adv)
    • Timestamps by Jolene
    Science Picks 1:37:00

    Nels – NIH Leadership Is Failing Early Career Researchers
    Vincent – Kennedy's Comments on Circumcision Are Only Going to Confuse and Shame Parents

    Music on TWiEVO is performed by Trampled by Turtles

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    1 hr and 21 mins
  • TWiEVO 118: Mother of an unrelated brother
    Oct 14 2025

    Nels and Vincent discuss research which shows a shift from the rule that living organisms produce same-species offspring: an ant that produces individuals from two distinct species.

    Hosts: Nels Elde and Vincent Racaniello

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    • David Baltimore interview (TWiV 100)
    • One mother for two species (Nature)
    • Timestamps by Jolene
    Science Picks

    Nels – Dr. Bill Rom, NYU canoes every lake connected by a portage trail in the Boundary Waters in Minnesota
    Vincent – Google just made photography obsolete

    Music on TWiEVO is performed by Trampled by Turtles

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    1 hr and 49 mins
  • TWiEVO 117: Genes that don't leave
    Aug 20 2025

    Nels and Vincent discuss research on hidden evolutionary constraints that dictate the retention of coronavirus accessory gene, which was flagged by NIH as potentially dangerous gain-of-function research.

    Hosts: Nels Elde and Vincent Racaniello

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    • Hidden evolutionary constraints and retention of coronavirus accessory genes (Curr Biol)
    • Timestamps by Jolene
    Science Picks

    Nels – NIH suspends dozens of pathogen studies over 'gain-of-function' concerns and Mentorship and acts of kindness
    Vincent – Kennedy's case against mRNA vaccines collapses under his own evidence

    Music on TWiEVO is performed by Trampled by Turtles

    Send your evolution questions and comments to twievo@microbe.tv

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    1 hr and 38 mins
  • TWiEVO 116: An ant and two fungi walk into a bar and meet a naked mole rat
    Jul 23 2025

    Nels and Vincent review research on how neuropeptides influence the behavior of leafcutter ants, and regulate the different caste behaviors such as defenders, leaf foragers, brood care, and fungus farming.

    Hosts: Nels Elde and Vincent Racaniello

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    • Neuropeptides and behavior of leaf cutter ants (Cell)
    • Timestamps by Jolene
    Science Picks

    Nels – My academic job offer was rescinded. I'll keep going—but U.S. researchers are running out of road
    Vincent – There's a new acid in our rain — should we be worried?

    Music on TWiEVO is performed by Trampled by Turtles

    Send your evolution questions and comments to twievo@microbe.tv

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    57 mins
  • TWiEVO 115: Even the archaea are going viral
    Jun 18 2025

    Nels and Vincent discuss an ultra reduced archaeal genome, the closest cellular entity to date that approaches a viral strategy of existence.

    Hosts: Nels Elde and Vincent Racaniello

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    • Ultra-reduced archaeal genome (bioRxiv)
    • Timestamps by Jolene
    Science Picks

    Nels – The Bethesda Declaration
    Vincent – US to Drop Guidance to Limit Alcohol to One or Two Drinks Per Day, Sources Say

    Music on TWiEVO is performed by Trampled by Turtles

    Send your evolution questions and comments to twievo@microbe.tv

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    1 hr and 29 mins
  • TWiEVO 114: The best experiments ever done
    May 21 2025

    Nels and Vincent review the properties of Mendel's pea genes through the lens of modern genetic analysis.

    Hosts: Nels Elde and Vincent Racaniello

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    Links for this episode
    • Join the MicrobeTV Discord server
    • Insights into Mendel's pea genes (Nature)
    • Timestamps by Jolene
    Science Picks

    Nels – Evolution related game
    Vincent – Should Unvaccinated Patients Get Organ Transplants? Ethicist Weighs In

    Music on TWiEVO is performed by Trampled by Turtles

    Send your evolution questions and comments to twievo@microbe.tv

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    1 hr and 32 mins