21.   They say every child is different and the standard should depend on the sexual maturity of a minor.

22.   This first trio of pigs will reach sexual maturity in late December, and be put to breeding the next generation.

23.   Under environmental duress, with less food available, the animals would take longer to reach full size and sexual maturity.

24.   Cooper said efforts to do this should begin within two months as the oldest animals reach sexual maturity.

25.   Scientists and lobstermen are also looking into whether lobsters are reaching sexual maturity faster and laying eggs earlier in their lives.

26.   Some of those smaller fish also are reaching sexual maturity earlier, producing offspring that are both small and programmed to be mothers while still young.

27.   The cows should soon reach sexual maturity and the next step for the researchers is to determine if they are capable of giving birth, Matsuda said.

28.   Their slow sexual maturity means it could take years for their population to bounce back if overfished.

29.   Skeletal development and the onset of sexual maturity were delayed and other physiological functions retained their vitality longer.

30.   The new area will also provide the chance to mingle with the opposite sex, as the whale is now reaching sexual maturity.