The article by Brenton Graveley discusses the developmental transcriptome of *Drosophila melanogaster*, a well-studied metazoan organism. Despite extensive research, the genome still contains unannotated genes, exons, and RNA editing sites. Using RNA-seq, tiling microarrays, and cDNA sequencing, the authors explored the transcriptome across 30 distinct developmental stages. They identified 87,352 new features, including thousands of genes, coding and non-coding transcripts, exons, splicing, and editing events. These findings significantly expand the known transcribed elements in the *Drosophila* genome and provide a high-resolution view of transcriptome dynamics during development.The article by Brenton Graveley discusses the developmental transcriptome of *Drosophila melanogaster*, a well-studied metazoan organism. Despite extensive research, the genome still contains unannotated genes, exons, and RNA editing sites. Using RNA-seq, tiling microarrays, and cDNA sequencing, the authors explored the transcriptome across 30 distinct developmental stages. They identified 87,352 new features, including thousands of genes, coding and non-coding transcripts, exons, splicing, and editing events. These findings significantly expand the known transcribed elements in the *Drosophila* genome and provide a high-resolution view of transcriptome dynamics during development.