Ключевые слова: adorable, animal, background, beautiful, black, black and white, close up, closeup, concept, curiosity, curious, cute, decorative rat, domestic, dumbo, ears, experiment, extermination, eyes, fluffy, funny, fur, furry, gentle, grey, happy, hide, lab, laboratory, look, look out, macro, mammal, mouse, nose, one, pet, pets, portrait, pretty, rat, rates, rats, rodent, science, screen saver, small, study, sweet, young,