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Dog lovers have been
calculating their pet's
. They have been working out their dog's age in "human years" by
by seven. However, researchers at the University of California have come up with a new
. They say it precisely finds out
age. The new method needs more than
mental arithmetic to work out a dog's age. It involves comparing the
of the DNA of dogs and humans. The
regard such DNA analysis as the
way to measure the ageing
of dogs and humans.
