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The drug makes the usually antisocial creatures much more interested in friendly contact with other octopuses. It's one more sign that the chemistry of social behavior has deep evolutionary roots.

Scientists have developed a forecast model for predicting mass bird migrations, based in part on weather patterns.

Scientists have developed a forecast model for predicting mass bird migrations, based in part on weather patterns.

Bonobos are much more likely than common chimpanzees to share their food, a study suggests. But researchers who study sharing say human kids are more helpful and cooperative than either species.

A study suggests large mammals must learn to migrate — and they aren't exactly quick studies. It takes decades before populations can effectively move across land to find the best food.

"We don't reject any theories," said Dmitry Rogozin, the head of Russia's space agency. That includes sabotage, though he suspects it was more likely a "technological error."

Lab chimps used in medical studies are being retired to a forested sanctuary. But scientists and workers who care for the animals say some older chimps aren't healthy enough to make the transition.

Unlike other primates, human toddlers watching a competition don't appreciate victors who shove rivals out of the way. Even little kids prefer high-status characters who aren't bullies.

A new NASA probe will get closer to our sun than ever before, to try to solve mysteries like why its atmosphere is so much hotter than its surface.

NASA has selected the astronauts who will fly on the first commercial space flights.

NASA has selected the astronauts who will blast off on new commercial space vehicles set for next year. Two of them flew on the final mission of NASA's space shuttle in 2011.

Leaders make decisions for a group in the same way they make choices for themselves, a study suggests. They don't change their decision-making behavior, even when the welfare of others is at stake.

Many spiders ply the skies by riding "balloons" of silk. And they rely on something more than just the wind to take them high up and far away.

Only two northern white rhinos remain, and they're both female. But researchers said Wednesday that they successfully have created embryos using sperm collected from the males before they died out.

A committee of experts examined about a dozen different synthetic biology technologies that could be potentially misused. For each, they considered how likely it was to be usable as a weapon.

Scientists and National Institutes of Health officials met with alcohol company executives and appeared to solicit money from them in violation of government policy. The NIH canceled the study.

Research shows that bees possess a mathematical ability once thought to exist only in dolphins, primates, birds and humans who are beyond the preschool years.

Guns are the most common method used for suicide, accounting for the deaths of almost half the people who kill themselves, a Centers for Disease Control and Prevention study finds.

The crash of the space rock that slammed into the Yucatan Peninsula also warmed up the Earth's atmosphere for 100,000 years. And scientists say it's a cautionary tale for people living today.

A working group convened by the National Institutes of Health looked at where chimps that had been used in research should live now. Unless relocating chimps would endanger them, a sanctuary is best.