Ключевые слова: analysis, animal, background, biology, biotechnology, chemical, chemistry, closeup, creature, cute, development, discovery, domestic, experiment, experimental, female, hand, health, hospital, lab, laboratory, liquid, little, mammal, medical, medicine, mouse, person, pest, pet, rat, research, rodent, safety, sample, science, scientific, scientist, small, study, tail, test, testing, white, woman, working,