Meet Hunter, a 9-year-old golden retriever. His big, friendly personality dominates life at home with Frank and Linda Riha in Burbank, Calif.
"This is like our child," Linda said. "I mean he is such an important part of our family."
Making Strides Without Red Tape
In the race to perfect "regenerative medicine," stem cell therapy for animals is ahead of treatment for humans because it is not so strictly regulated. It's not experimental -- it's here.
And while the debate rages over the ethics of embryonic stem cell research, doctors have made stunning progress with "adult" stem cells recovered from body fat.
They are less powerful than embryonic cells, but they don't require the destruction of an embryo. There are no side effects and no problems with rejection, because the patient is also the cell donor.
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