Singapore Cord Blood Bank services, but retain ownership over the use of their cord blood. Cord blood is the blood that circulates through the umbilical cord from the foetus to the placenta. After delivery, the placenta is almost always thrown away. Yet this humble umbilical cord has become a life saving and precious commodity, because cord blood is rich in blood stem cells. Blood stem cells are young or immature cells that can transform into other forms of essential blood cell types (pluripotent), such as red blood cells, white blood cells and platelets. The use of blood stem cells has emerged as a potentially
Sexual mimicry males to produce offspring of higher fitness. Non-dominant females are observed copulating more often with lower-ranking males. It is costly for female hyenas to give birth through their long peniform clitoris. The umbilical cord is 12–18 cm long, while the journey from the uterus to the clitoris end is 40 cm. The umbilical cord often breaks before the cub emerges, leading to death by anoxia for many young. This journey is not only harmful for the cubs, but also for the mother. The tissue of the clitoris will sometimes rip open when giving birth for the first time which can