Come and meet the tortoise that went to the moon! The Russian Tortoise (Testudo or Agrionemys horsfieldii) was the first vertebrate animal to fly around the moon. It spends more time in hibernation/aestivation than just about any other vertebrate. And despite being probably the commonest and widespread tortoise in the world, it's vulnerable to extinction. What could humans possibly be doing to threaten such a common animal with disappearance?

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