<i>In vivo</i> imaging: shining a light on stem cells in the living animal

The article discussed how traditional methods of studying stem cells, such as histology and cell culture, were limited in capturing the complex interactions of stem cells within their natural tissue environments. It highlighted the advancements in imaging technologies and genetic tools that allowed researchers to observe stem cells in vivo, providing new insights into their activity, behavior, and control, especially in response to injury. This approach enabled a deeper understanding of stem cell dynamics within their endogenous niches.