By employing the techniques of super-ovulation, artificial insemination, and embryo transfer, farmers can more than triple the number of offspring produced by a single cow per year.
Recent technological advances in reproduction, such as artificial insemination and in vitro fertilization, have increased the full income of women relative to men.
On the other hand, rainfall increased in the interior of western Africa, and the northern limit of the tsetse fly, an insect fatal to cattle, moved south.
And cruise lines are reporting stronger bookings for the second half of the year after introducing special fares and other incentives, according to the cruise lines International Association.
It improves the timeliness of news dispatches, and saves the costs in human resources, materials and time, and it also reduces the maintenance cost of the website.
The problem is that competition ordinarily cannot be observed directly but must be inferred from the spread or increase of one species and the concurrent reduction or disappearance of another species.
A new study found that inner-city kids living in neighborhoods with more green space gained about 13% less weight over a two-year period than kids living amid more concrete and fewer trees.
The culprit was not so much the rise in average temperatures but an increased frequency of extremely hot days, defined as above 35 degrees Celsius (95 degrees Fahrenheit).
Mothers have been warned for years that sleeping with their newborn infant is a bad idea, because it increases the risk that the baby might die unexpectedly during the night.
Because of this increased concentration, regrowth of plants is minimal, leading to increased erosion, which leads to a decrease in the fertile topsoil, leading to even less regrowth.
That is to say, the country will be in great need of labor by the year 2050. With the "two children" policy, an increase in births can solve this problem.
The Congressional Budget Office says the leading health-care-reform proposals will increase health-care spending and make the budget harder to balance in the long run.