Bumblebees of the subgenus Psithyrus (known as 'cuckoo bumblebees', and formerly considered a separate genus) are brood parasites, sometimes called kleptoparasites, in the colonies of other bumblebees, and have lost the ability to collect pollen.ueen and worker bumblebees can sting. Unlike in honeybees, a bumblebee's stinger lacks barbs, so the bee can sting repeatedly without injuring itself; by the same token, the stinger is not left in the wound. Bumblebee species are not normally aggressive, but may sting in defence of their nest, or if harmed.
STEM CELLS SAVE LIVES. For decades, doctors have harnessed the unique ability of stem cells to treat leukemia and genetic blood diseases. But now, researchers are discovering that these cells have the power to heal, to fight disease, and to regenerate damaged or aging tissue throughout the body. To fully understand why they hold the potential to change your childâs medical future, get to know more about stem cells.
Cord blood banking enables parents to save stem cells from the umbilical cord of their child immediately after birth. Families preserve these cells so that they are available for use in existing and future medical treatments. In fact, since 1988 stem cell transplants have been used to treat some 80 diseases! 1, 2.hrough cord blood banking, you can collect and preserve potentially lifesaving stem cells, and doing so could one day save the life of your child or a blood relative.