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The five geckos that were blasted into orbit aboard a Russian rocket in a study of the effects of zero-gravity on their sexual behaviour were not the first animal astronauts sent into space…
Tsygan and Dezik became the first dogs to make suborbital flight, being sent by the Soviets to a height of 68 miles. They returned safely, and over the next six years 22 dogs followed in their paw-steps.