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Almost everyone knows about the great adventures that have lead man to discover various planets, learn about the solar system, and even set foot on the moon. However, has anyone recognized the creatures, which went into space first, to make sure it was safe for humans? Before astronauts came astro-animals. Since the 1950’s, more and more animals have been traveled in space. Today, almost all shuttle missions carry rats, mice, flies, and even jellyfish for …

…Today, animals are still used in micro-gravity investigations. One of the main focuses of animal investigations is to find out how various gravitational inputs adapt the complex mechanisms that may be involved with Earth-based diseases. Some people think that using animals in space is cruel, but they have clearly played a major role in space exploration. The continuing development of space travel and safety in space will be advancing in the future due to animals.