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    Exposure to songs then shapes these neural circuits.
    0:39

    Exposure to songs then shapes these neural circuits.

     3K  views
    The genome contains code for proteins that guide brain development.
    0:32

    The genome contains code for proteins that guide brain development.

     2.69K  views
    There must be something fixed in the learning process.
    0:42

    There must be something fixed in the learning process.

     2.75K  views
    This is the song of a brown threshing machine.
    0:40

    This is the song of a brown threshing machine.

     2.79K  views
    Isolated finches still produce what are called innate or isolated songs.
    0:36

    Isolated finches still produce what are called innate or isolated songs.

     2.8K  views
    The bird began vocalizing during the motor learning phase.
    0:38

    The bird began vocalizing during the motor learning phase.

     2.78K  views
    So how do birds learn these songs?
    0:33

    So how do birds learn these songs?

     2.78K  views
    Most birds make short, simple calls.
    0:27

    Most birds make short, simple calls.

     2.65K  views
    After all this fighting and eating and flying.
    0:39

    After all this fighting and eating and flying.

     2.81K  views
    Dueling hummingbirds use spear-like beaks and blind fast flight.
    0:41

    Dueling hummingbirds use spear-like beaks and blind fast flight.

     2.83K  views
    Each sugary snack is also pollinated with pollen left over from the bird's previous meal.
    0:35

    Each sugary snack is also pollinated with pollen left over from the bird's previous meal.

     2.82K  views
    Of course, flying this way can be exhausting.
    0:48

    Of course, flying this way can be exhausting.

     2.73K  views
    Hovering allows hummingbirds to slow to a stop almost instantly.
    0:36

    Hovering allows hummingbirds to slow to a stop almost instantly.

     2.83K  views
    To flap their wings at this speed, hummingbirds have evolved huge pectoral muscles.
    0:34

    To flap their wings at this speed, hummingbirds have evolved huge pectoral muscles.

     2.79K  views
    The clock starts... Now. Did you miss it? It's not some buzzing bug.
    0:40

    The clock starts... Now. Did you miss it? It's not some buzzing bug.

     2.82K  views
    In fact, their droppings, we originally valued as fertilizer.
    0:40

    In fact, their droppings, we originally valued as fertilizer.

     2.75K  views
    But the pigeon's talent for fast flight is further exploited by breeding for racing.
    0:35

    But the pigeon's talent for fast flight is further exploited by breeding for racing.

     2.84K  views
    As generalists, pigeons use urban food waste.
    0:40

    As generalists, pigeons use urban food waste.

     2.87K  views
    Pigeons are now one of the most abundant and widespread species on Earth.
    0:37

    Pigeons are now one of the most abundant and widespread species on Earth.

     2.82K  views
    As early as 10,000 years ago, humans kept pigeons in captivity.
    0:41

    As early as 10,000 years ago, humans kept pigeons in captivity.

     2.47K  views
    On the morning of June 12, 1944, a pigeon named Paddy was making an epic 368-kilometer journey.
    0:38

    On the morning of June 12, 1944, a pigeon named Paddy was making an epic 368-kilometer journey.

     3.38K  views