1.   And women in many developed countries are tending increasingly to adjust by forming non-legal unions that often produce offspring.

2.   Frequent feeding is the key to producing good offspring, assuming they inherit the potential from their parents.

3.   From this viewpoint, gametes and the genes they carry are merely a device whereby organisms produce offspring like themselves.

4.   Moreover, the mating of a human being to the federal bench seems to produce an offspring that lives approximately for ever.

5.   The better ones breed to produce offspring and to drive the process further.

6.   Although both male and female swallows with longer tails produced more offspring, long tails provided no benefit to females.

7.   Another explanation, proposed by Charles Darwin, is that centuries of female infanticide favored families that were naturally inclined to produce male offspring.

8.   Australian researchers are planning to insert multiple copies of a gene into carp to stop them producing female offspring.

9.   Because of cross-pollination, the plants are notorious for producing offspring in various colors.

10.   According to anthropologists, a man and a woman play their necessary role in the evolutionary process by producing offspring.