A newly discovered genetic clock acts as the body’s developmental timekeeper, coordinating the bursts of gene activity needed for growth. Scientists found that when this clock breaks down, development comes to a halt. Think about a train sitting at a station. Passengers have boarded, conductors are checking tickets, and everything is ready to go. But [...]

Detached sea cucumber tissue survived, healed, and grew for years in natural seawater, revealing a remarkable new model for regeneration and biomedical research. A chance observation has led scientists to a discovery that challenges one of biology’s most basic assumptions: that detached animal tissue eventually dies. Instead, researchers found that tissue removed from a sea [...]