With the caloric needs of the planet expected to soar by 50 percent in the next 40 years, planning and investment in global agriculture will become critically important, according a new report.

Higher selenium levels in the blood may worsen prostate cancer in some men who already have the disease. A higher risk of more-aggressive prostate cancer was seen in men with a certain genetic variant. In those subjects, having a high level of selenium in the blood was associated with a two-fold greater risk of poorer outcomes than men with the lowest amounts of selenium.

Researchers believe our oldest mammalian relative may help us to better understand ovarian cancer. DNA mapping of the platypus has uncovered an interesting relationship between their sex chromosomes and DNA sequences found in human ovarian cancer.

High intake of dietary fats from red meat and dairy products was associated with an increased risk of pancreatic cancer, according to a new study.

Hot or not? Men agree on the answer. Women don't. There is much more consensus among men about whom they find attractive than there is among women, according to a new study.

In the mating world of yellow dung flies, large, males almost always get the girl. However, a new study suggests that smaller males rule if presented with an opportunity to woo females when they are not hanging out on cow dung. Small male dung flies, which are traditionally unsuccessful at finding and keeping mates on dung pats, successfully mated with females feeding on composting apple pomace.

Worldwide, one in 25 deaths are directly attributable to alcohol consumption. This rise since 2000 is mainly due to increases in the number of women drinking.

Engineers aim to improve the reliability of lead-free soldering alloys that are used to make electronic devices. This would help with the implementation of environmentally-friendly materials in electronics production.

Scientists have found another clue that may lead to eradication of HIV from infected patients who have been on antiretroviral therapy. A real cure for HIV has been elusive because the virus can "hide" in a latent form in resting CD4-T cells. By understanding this "latency" effect, researchers can identify ways to reactivate the virus, and enable complete clearance by current or future therapies.

Two processes can be used to control the size of nanoparticles, which could serve as tiny light sources.