The Cavefish Chronicles

Andrea Carter
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  • Pets & Animals

Understanding how the same fish could look so different is a question that scientists have been investigating since the discovery of the blind Mexican cavefish, Astyanax Mexicanus in the 1930’s. The cave fish, pale pink without eyes, lives in underground caves below its surface cousin which is silvery gray with black eyes. Today Astyanax is a model to study genetics, disease and behavior. The story includes jungle explorers braving plane crashes and venomous snakes to find the cavefish and the scientists who studied it including a renowned German professor who fled Nazi Germany and a female Turkish scientist, Perihan Sadoglu who did some of the first genetic work in the 1950’s, but who mysteriously disappeared mid-career. The podcast follows the stories of scientists past and present revealing clues along the way to find out what had happened to Dr. Sadoglu and why it matters now.

Episodes

  1. 02/05/2023

    The Model

    Today the cavefish is a model to study genetics and also neuroscience and disease. As the fish's story continues today, a mystery of the past is revealed.

  2. 02/05/2023

    Cavefish Genetics

    Perihan Sadoglu was one of the first scientists to study cavefish genetics. Today scientists are building upon her work and others to better understand the fish's curious characteristics.

  3. 02/05/2023

    The Caves

    The Mexican caves where the cavefish originated are central to the story. In the 1960's and 1970's, explorers and scientists like Perihan Sadoglu searched for more caves to collect fish to study in the laboratory. Today scientists are going back to study the fish in its natural environment.

  4. 02/05/2023

    The Discovery

    The cavefish's journey from cave to lab began close to 100 years ago and includes the explorers and scientists that helped pave its way, including Turkish scientist, Perihan Sadoglu who disappeared from science mid-career.

  5. Season 1 Trailer

    Trailer: The Dark World Rises

    In the lobby of a Florida Atlantic University research building, there is a fish tank divided in two. On one side are fish without eyes, pale pink in color. On the other side are normal looking fish, silvery gray with black eyes. The plaque, however, identifies them both as Astyanax Mexicanus. The pale fish lives in subterranean caves in Mexico beneath the eyed river fish. Understanding how the same fish can look so different is a question that scientists have been investigating for over 80 years. Today, upstairs, and in labs around the world the Mexican cavefish is also a model to study genetics, disease, and neuroscience. They are obese, have diabetes, and do not sleep much. Scientists are studying why these qualities, considered maladies in people, seem to help these fish thrive in the dark. The cavefish’s story includes jungle explorers braving plane crashes and venomous snakes to find it and the scientists who studied it. They include a renowned German professor who fled Nazi Germany and a female Turkish scientist, Perihan Sadoglu who did some of the first genetic work in the 1950’s, but who mysteriously disappeared mid-career.

  • 1 Trailer
    4 Episodes

Trailer

About

Understanding how the same fish could look so different is a question that scientists have been investigating since the discovery of the blind Mexican cavefish, Astyanax Mexicanus in the 1930’s. The cave fish, pale pink without eyes, lives in underground caves below its surface cousin which is silvery gray with black eyes. Today Astyanax is a model to study genetics, disease and behavior. The story includes jungle explorers braving plane crashes and venomous snakes to find the cavefish and the scientists who studied it including a renowned German professor who fled Nazi Germany and a female Turkish scientist, Perihan Sadoglu who did some of the first genetic work in the 1950’s, but who mysteriously disappeared mid-career. The podcast follows the stories of scientists past and present revealing clues along the way to find out what had happened to Dr. Sadoglu and why it matters now.

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