DescriptionS 1-2: Petri dishes and glass containers with liquids; S 3-4: Microscope; S 5-8: Fly cages; S 9: Scientist selecting flies; S10: Petri dishes and small containers (possibly containing larvae or eggs) on a shelf; S 11-12: Scientist preparing pupae/eggs for rearing; S 13: Empty transparent cylinders; S 14: Pouring pupae into glass container; S 15: Stored batches of pupae on a shelf.