The older that such fish become, the more mercury they may have absorbed. Anything that eats these fish within the food chain also consumes the higher level of mercury that the fish have accumulated. This process explains why predatory fish such as swordfish and sharks or birds like osprey and eagles have higher
The goal, then, when it comes to having a boy is to increase the likelihood that a Y chromosome sperm reaches the egg first. Many medical researchers believe that Y chromosome sperm are faster swimmers, but that X chromosome sperm have more endurance.
If you want your Sim to get a high chance of getting pregnant with twins or triplets, as stated above, the first step is likely to get the fertility treatment. If both the mother and father Sims have it, this will help increase the chance for multiples even more.f you want your Sim to get a high chance of getting pregnant with twins or triplets, as stated above, the first step is likely to get the fertility treatment. If both the mother and father Sims have it, this will help increase the chance for multiples even more.