Dad's biological clock ticks, TOO!

It's a well documented fact, that would be moms in their mid -30s, or older, face reduced pregnancy rates and increased miscarriages.

But now there's research the shows the age of the potential FATHER  -- not just the mother -- can seriously limit the chances of having a baby later in life,

Researchers in France found maternal age was closely associated with a decrease in the pregnancy rate -- 8.9 per cent in women over 35 years, compared with 14.5 per cent in younger women -- as well as a higher miscarriage rate.

But the the study, to be presented at the European Society of Human Reproduction and Embryology conference in Barcelona, showed paternal age led to decreases in the pregnancy rate, from 12.3 per cent with fathers 30 years of age or younger, to 9.3 per cent in fathers older than 45 years of age.

The rate of miscarriage more than doubled for older Dads.