The first steps of human development—those that occur within the first few weeks of pregnancy—remain mysterious in many ways. Within a week of fertilization, human embryos form a blastocyst, which ...

A gene that turns on very early in embryonic development could be key to the formation of the placenta, which provides the ...

The first lineage decisions in mammalian embryonic development are made shortly after a wave of transcriptional activation that acts as a wake-up call for the sleeping embryonic genome to claim the ...

Scientists have modeled the first step in human development in a laboratory with the goal of better understanding how organs form. In the new study, the researchers edited groups of human pluripotent ...

Understanding how genes coordinate their expression across cells in a growing embryo can provide insights into the transcriptional programs that control development. Intercellular variability of gene ...

Scientists have grown a scalable new embryo-like model that unshrouds some mysteries of early human development, including blood cell formation, or hematopoiesis—a first for the field. In an article ...

Although Michelangelo's masterpiece David captured the magnificence of the human body - how this exquisite body plan is exactly established during human development has puzzled scientists for more ...

Studies have revealed that brain development occurs in five main stages. The first stage, childhood, lasts from birth to about nine years of age. The brain then enters adolescence, which lasts until ...