SyFy shares the history of and science behind frogs in space.
In 1970, however, things got more complex. The Orbiting Frog Otolith mission launched on Nov. 9, 1970, and it carried two male bullfrogs into orbit. The frogs were equipped with electrodes surgically implanted in the inner ear, in order to monitor their function. Scientists chose bullfrogs in particular for the mission because of the similarity between their inner ear and that of a human. Additionally, their relatively small size made for a minimal launch payload, and their amphibious nature allowed them to be stowed in water during the flight, which minimized the impact of vibrations and acceleration during the journey.
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