31.   That is not the same as cloning the more sophisticated cells of an adult animal, or even a developing fetus.

32.   The adult animals also showed a greater than normal response to pain, Ruda said.

33.   The findings also raised the possibility that groups of precursor cells are present in the brain from birth but remain inactive in adult animals.

34.   The feat, scientists say, means that cloning an adult animal like Dolly is not a fluke as some have suggested.

35.   The model, which could be adjusted for different mortality rates and other parameters, showed that survival of adult animals is the force that drives population growth.

36.   The result is not another Dolly, because Dolly was made from an udder cell of an adult animal.

37.   The report marks the first time that scientists have demonstrated regeneration and reconnection of cut spinal nerves in adult animals, with some return of function.

38.   To clone, scientists take a cell from an adult animal and slip it into an egg whose own genetic material has been removed.

39.   Two of its stars published a famous paper concluding that cloning an adult animal was impossible, dashing cold water on their eager colleagues.

40.   Until this year, most researchers believed it would be impossible to make clones from cells from adult animals, or even fetuses.