Some studies have said that cockroaches are species that survived the impact of an asteroid, which shows that the name "Xiao Qiang" is not false. In 2007, Russian scientists sent cockroaches to extraterrestrial space in the name of so-called space research, plus the time of launch and return, a total of 12 days, after returning to Earth, the experimental cockroaches were left with 33 small cockroaches.
The strange thing is that usually when the cockroach is born, the shell is transparent, and then gradually deepened, but this batch of space cockroaches is much darker than the ordinary cockroaches. Further observations revealed that the cockroaches were more robust, growing and moving faster than the common cockroaches on Earth.
We know that the weightless environment of space and cosmic background radiation can potentially alter the shape of living things, including modifying the structure of DNA, elements that scientists tend to believe make cockroaches change.
Scientists have sent many animals into space, including cats, dogs, turtles, jellyfish, orangutans and fruit flies.