In zebrafish, a protein called Banp allows cells in the retina to copy their DNA and repair any replication damage before dividing in to two new cells.
Awake mice with hallmarks of Alzheimer’s disease show disruptions in the way some of their supporting brain cells respond to the signalling molecule norepinephrine.
The enzyme DIP2, which is conserved across animals and fungi, controls the level of distinct lipid subspecies, allowing cells to adapt to external stresses.