What happened to the animals that were sent into space by scientists 50 years ago to explore the way for human beings?

Since human beings have the ability to send objects into space, the plan of manned space flight has always existed, and in order to ensure the foolproof and safety of manned space flight, most countries have done experiments with many animals.

After World War II, the United States obtained a large number of samples of V 1 and V2 rockets from German and rocket scientist wernher von braun. Then on February 20th, 1947, the United States sent fruit flies into space by V2 rocket from Germany, and fruit flies became the first species to go into space.

At that time, the research and utilization of space had just begun, and scientists were eager to know what weightlessness and cosmic radiation would make life look like, so both the United States and the Soviet Union launched various animals into space. The former Soviet Union sent the dog Lycra into space for the first time, but the dog died quickly in weightlessness. Later, the United States also trained a large number of chimpanzee astronauts to carry out various experiments instead of humans, and most of these chimpanzees returned to the earth.

Generally speaking, the animals used in human experiments in the early days did not have a good ending, but with the continuous progress and development of technology, animals have been able to safely go to heaven and return, and their sacrifices have also contributed to the later manned space flight. It can be said that without the sacrifice of these animals, the human space age will be postponed for many years.

In order to explore the mysteries of space, as early as 50 years ago, the United States and the Soviet Union conducted animal experiments, on the one hand, laying the foundation for manned space flight, and on the other hand, competing for the level of space technology. So, what was the fate of the animals that first entered space?

In order to know how much acceleration animals can bear, from1June 1948 to1September 1949, the United States used a "V-2" rocket to send monkeys to an altitude of more than 60 kilometers four times, until 1952, the United States launched a biological rocket again, twice.