1.they are hard to repair because they cant push the spinal cord together. They discovered that olfactory ensheathing nerve cells (OEC's), which reside inside the human nasal cavity are constantly regenerating. 2. who published the results of the study in the scientific journal. 3. his ultimate goal is to be able to walk again

1. so they can survive winter. 2.it gives new insight into the role played by glucose in frog's survival 3. believes the frog's clever technique could be adapted to freeze human organs available for transplant.