Human brain development begins during gestation and continues postnatally through old age. The brain undergoes profound changes in macrostructure and microstructure underpinned by numerous cellular ...

Researchers recently examined stem cells to see if they could hit the “pause button” on human development. By inhibiting a series of chemical reactions known as the mTOR signaling pathway, the team ...

In the earliest hours after fertilization, an embryo takes its first steps toward becoming a living organism by shedding maternal control and activating its own genetic program. This critical process, ...

Biologists mapping the human body have long assumed that every major kind of microscopic life inside us already had a place on the tree of life. The discovery of strange RNA-based entities called ...