For hundreds of years there have only been two main types of cell division in animals. But now researchers have identified a new and unexpected kind of cell division that occurs without DNA being replicated. Discovered in zebrafish skin cells, this newly spotted division, called asynthetic fission, could be a temporary measure used when growth is fast to make sure there's enough skin to go around.

Read the full paper here.

For more stories like these sign up for the Nature Briefing: An essential round-up of science news, opinion and analysis, free in your inbox every weekday.