Cross-species analysis of immature neurons in the hippocampus. Leveraging machine-learning-augmented scRNA-seq analysis, the team identified imGCs with transcriptome-wide immature neuronal characteristics in different mammals. They then performed cross-species comparisons of imGCs and mature granule cells (mGCs) from humans, monkeys, pigs and mice. Credits: Yi Zhou, Guo-li Ming, and Hongjun Song.