News
- Animals
Anemone Wars: Clone armies deploy scouts, attack tidally
The first description of clashing armies of sea anemones has revealed unsuspected military tactics.
- Earth
Gender Measure: Pollutant appears to alter boys’ genitals
Infant boys who were exposed in the womb to modest concentrations of certain common plasticizers and solvents developed genital changes.
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Menstrual cycle changes the brain
Hormonal fluctuations over the course of a woman's menstrual cycle change the abundance of a type of receptor on nerve cells, which can change the cells' behavior.
- Chemistry
Chemical analysis deciphers biblical palette
The first characterization of the paints used to decorate the margins of Gutenberg Bibles could help guide preservation and future restoration efforts.
- Planetary Science
Mars Polar Lander: Lost but now found?
A reanalysis of an image taken 5 years ago suggests that planetary scientists have found the remains of the Mars Polar Lander, which vanished minutes before it was supposed to touch down on the Red Planet.
- Anthropology
Carnivore conflicts gnaw at Neandertals
Discoveries in a French cave indicate that by about 41,000 years ago, Neandertals and hyenas competed for prey and for access to protected sites where they could safely consume their food.
- Health & Medicine
Inflammation inhibitor may limit heart attacks
A new drug suppresses an inflammation-causing protein that has been linked to heart attacks.
- Plants
Built-in bird perch spreads the pollen
Tests confirm the idea that a plant benefits from growing a bird perch to let pollinators get the best angle for reaching the flowers.
- Planetary Science
Craft show
The Mars Global Surveyor spacecraft recently imaged Mars Odyssey and Mars Express, marking the first time that a spacecraft orbiting a planet other than Earth has captured images of other craft circling the same planet.
- Tech
Fields of Beams: Carbon nanotubes crop up for big-screen TV
Carbon nanotubes serve as the electron emitters that light up the screen of a new experimental, high-definition television display.
- Health & Medicine
Positive Jolt: Electroshock therapy may have side benefit
People with depression have high concentrations of norepinephrine, a brain hormone, but electroshock treatment lowers these levels to the normal range.
- Materials Science
Tissue Tether: Improved conducting plastic could boost nerve-regeneration success
Biomedical engineers aim to repair damaged nerves with a chemically modified conducting polymer that stimulates the growth of nerve cells.
