Scientists Discover How Embryos Develop Different Tail Types In a new study, scientists have uncovered the molecular mechanism responsible for the development of different tail types in embryos. New Method to Track Embryo Development in Real Time Researchers have developed a new method to track embryo development in real time that could revolutionize our understanding of how embryos form and grow. How Embryonic Cells Know When to Divide Researchers have discovered how embryonic cells know when to divide, providing an answer to a long-standing mystery about early embryo development.
Human embryos are far more likely to die than come to term, an evolutionary trait seen across species. Laws granting personhood at conception ignore built-in embryo loss, with potentially grave consequences.
Researchers find that Plethodontidae, a dominant family of salamanders, all of which are lungless as adults, actually develop lungs as embryos shedding light on the evolution of lung loss over millions of years.
Researchers have discovered and characterized a DNA sequence found in jawed vertebrates, such as sharks and humans, but absent in jawless vertebrates, such as lampreys. This DNA is important for the shaping of the joint surfaces during embryo development.