For
It helps medical progress and species preservation.
Against
It interferes with nature and causes animal suffering.
Anonymous excerpts, translated where noted.
“crucial for scientific medical progress.”
“Zoos coordinate breeding programs that have saved and continue to save many species from extinction.”
“Experiments on animals are not morally justified because they cause pain or harm the animals.”
“animal-based research can be deeply unreliable and can even hinder medical progress.”