Joseph Castro

The huge structure could be part of a bridge to an artificial island in an ancient lake.

A new study may take away one tarantula's superhero powers.

A protein may be to blame for the frequent nighttime urination.

Could frequent dental X-rays lead to brain tumors?

That's twice as long as scientists had suspected.

Turns out, children may someday call robots "friends."

Researchers have pinpointed characteristics that make some forms of abstract motion more preferred than others.

Memory formation in fruit flies is simpler than once thought. Could this be true for humans, too?

Teenage pregnancy, birth and abortion rates have steadily decreased over the last two decades.

Shifts in public opinion on climate change are tied to efforts of political leaders and advocacy groups.

Our history of group conflict has led to the development of sexual differences in prejudices.

A fly that feeds on the blood of bats dates back to 20 at least million years ago.

Men are hard-wired to remember unpleasant emotional experiences — the opposite of women.

Evolutionary divergence depends on random processes and natural selection.

Could introducing elephants to Australia reduce wildfires?

Nurturing your children not only affects their mental development, but also their brain development.

During courtship, male house mice don’t just squeak, they sing.

Scientists have recorded what may be the communicative sounds of deep-sea fish.

Do treatments for honeybee mites do more harm than good?

Even after 100 years, restored wetlands rarely equal their conditions of the past.

By 2 months of age, infants already understand that unsupported objects will fall.

Bowerbirds that create the best illusions get all the gals.

Insomnia may lessen the strength of an emotional memory.

How do fish choose a mate?