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Researchers uncover weekly and monthly rhythms of sodium retention and excretion in participants of space simulations.

Mouse mothers emit ultrasound vocalizations and odor cues to stimulate otherwise uninterested fathers to provide parental care to their pups.

People of all ages think that, despite having changed in the past, they will change very little in the future.

Animal dissections are not needed in education.

The release of non-native organisms into the environment by high school teachers should not be used as an argument to stop teaching by hands-on demonstration.

Despite decades of work, compounds in frog skins have failed to yield new antibiotics. Why?

Scientists propose a new model for how homosexuality develops, but observers say it will be difficult to test.

Searching for life beyond our teeming planet has led to some innovative collaborative approaches to generating knowledge right here at home.

Scientists studying the Arctic Ocean aboard a US Coast Guard icebreaker discover one of the largest phytoplankton blooms ever recorded—beneath sea ice.

Researchers learn to predict visual imagery in dreams based on functional MRI scans of brain activity during sleep.

Old koala pelts from museum collections are helping researchers to learn more about the retroviral invasion that may be endangering the Australian marsupial.

Scientists set up a stakeout to track the movements of microbes around a new hospital.