| 1 | All of this is important in evolution' s ultimate goal - successful procreation. | |
| 2 | The animal that stands the best survives and reproduces, passing on its characteristics. | |
| 3 | Millions of baby girls are believed to have been aborted in a country which traditionally favors male heirs. | |
| 4 | Families regard the investment in a home as a necessary investment in the continuation of the family line. | |
| 5 | About 80 percent of gay men are pressured into marrying women in order to produce offspring. |