Ilustracja przedstawia cztery obrazki. 1. Zdjęcie przedstawia potomostwo donkey stallion oraz horse mare, czyli muła, mule. Mules have been known to humans for several thousand years. Owing to their high physical strength, resistance to adverse environmental conditions and calm nature, mules were commonly bred in ancient Egypt, Mesopotamia and Anatolia as pack animals. Already in those days, cross-breeding was criticised for being against nature. 2. Zdjęcie przedstawia krzyżówkę genetyczną bratka ogrodowego, garden pansy. Trzykolorowy bratek, three-color violet skrzyżowany z żółtym fiołkiem, vials oraz z niebieskim kwiatem Altai, violet Altai dadzą kawiat o ubarwieniu dwóch liści na fioletowo, trzech liści na fioletowo – biało, z fioletowymi przebarwieniami. Loved by many people, garden pansies are a crossbreed of three wild growing species of violets. They bloom profusely, tolerate partial shade well and can be found in numerous varieties differing in petal colours and patterns. Despite being an interspecies hybrid (not the only one among ornamental plants), they do not evoke any negative emotions. 3. Zdjęcie przedstawia niebieską różę, blue rose. Work on blue roses has been ongoing for years. To this end, genes encoding blue dyes are implanted in roses from other plants. Although the colours obtained still deviate from the expected ones, they are attractive enough. 4. Zdjęcie przedstawia genetycznie zmodyfikowane warzywa, genetically modified plants, pomidory, kukurydzę i ziemniaki. They usually have higher yields than unmodified varieties, they are more resistant to numerous diseases, adverse environmental conditions and pesticides. Despite many advantages, they are criticised by some circles.