Insight articles are related to original research papers in eLife and explain why the results reported in the paper are significant in a given field of research. Insight articles are commissioned by eLife staff.
The presence of an organelle called the fusome in species as diverse as Drosophila and mammals indicates an ancient, conserved programme of germ cell development.
Experiments mapping individual neurons in the sensorimotor cortex of mice show that sharp transitions in functional properties can define cortical regions.
A shift in the balance between two lipids – cholesterol and sphingomyelin – makes hybrid epithelial-mesenchymal cancer cells less responsive to certain chemotherapy drugs.