6,896 results
6,896 results for: Bears
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Frozen in Time: Gas puts mice metabolically on ice
Researchers have induced a hibernation-like state in mice by exposing them to low concentrations of hydrogen sulfide.
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DNA’s Moody Temperament: Gene variant linked to depression-ready brain
A common version of a gene involved in regulating the neurotransmitter serotonin creates a brain that responds sensitively to stress and is therefore more likely to become depressed.
- Planetary Science
Roaming Giants: Did migrating planets shape the solar system?
New simulations suggest that the solar system's four biggest planets were once bunched together, setting up a planetary bowling game that rapidly and violently rearranged the structure of the outer solar system and tossed chunks of debris inward.
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Decoding Garlic’s Pizzazz: Extract stimulates taste, temperature receptors
Raw garlic's characteristic spiciness stems from its capacity to open channels on nerve cells that react both to tastes and noxious temperatures.
- Planetary Science
Renegade moon
Saturn's outlier moon Phoebe didn't coalesce from material near the ringed planet but was captured from the distant Kuiper belt.
- Plants
World’s fastest plant explodes with pollen
A high-speed camera has revealed the explosive pollen launches of bunchberry dogwood flowers as the fastest plant motion known.
- Health & Medicine
Ready-to-eat spinach bears tough microbes
Bagged spinach may contain a significant number of bacteria, many of which are resistant to several antibiotics.
- Tech
Sensor measures mass of one DNA molecule
A new biosensor that can detect the mass of a single DNA molecule could lead to faster and more accurate screening for HIV infection, cancer, and other diseases.
- Chemistry
Striking Oil: High-pressure processing minimizes trans fats
Improvements in the techniques used to hydrogenate vegetable oils could soon fill store shelves with food products containing smaller percentages of unhealthful trans fats.
- Earth
Under Pressure: High-stress tests show surprising change in a mantle mineral’s behavior
Compressing a common iron-bearing mineral to the pressures found deep within Earth makes the material much stiffer, which might explain why seismic waves travel particularly fast through some zones of rock.
- Earth
Multifaceted Mineral: Intense heat, pressure bear new form of silica
By squeezing a mineral sample to pressures higher than those deep within Earth, then zapping it with a laser, scientists have created a crystalline form of silicon dioxide previously unknown on Earth.
- Astronomy
Three’s Company: Asteroid 87 Sylvia and her two moons
Astronomers have for the first time discovered an asteroid with two moons, an indication that the rock is highly porous.
