english: What we do is we put a monarch in a big cage, a medicinal plant on one side, a non-medicinal plant on the other side, and then we measure the number of eggs that the monarchs lay on each plant.
non_english: Kraljevskog leptira stavljamo u veliki kavez, lekovitu biljku sa jedne strane, nelekovitu sa druge, i onda merimo broj jaja koja leptiri polažu na svaku biljku.