When mice smell the scent of food on the breath of their fellow mice, they use that experience to decide what's safe to eat in the future. Key in that learning process is the pairing of a particular odor with a chemical ingredient found in mouse breath, scientists knew. What they didn't know was how mice manage to sniff that connection out. According to new study, now they do.

Using ever-growing genome data, scientists are tracing the evolution of the bacterial regulatory system that controls cellular motility, potentially giving researchers a method for predicting important cellular functions that will impact both medical and biotechnology research.

Imagine if your brain lost its working memory -- the ability to hold and manipulate information in your mind's eye. That's the plight faced by millions of people with neurofibromatosis type 1, or NF1. Now a UCLA research team has uncovered new clues about how NF1 disrupts working memory. Their findings suggest a potential drug target for correcting NF1-related learning disabilities.

New recommendations on the use of the drug cetuximab have been issued after officials halted enrollment in a phase III clinical trial in patients with spread of colon cancer into regional lymph nodes whose tumors had been surgically removed. ongoing analysis during the clinical trial found that patients receiving the combination therapy had no significant improvement in survival compared to standard therapy.

Chemists who specializes in cancer prevention research have reported evidence that for some dietary compounds, length of exposure over time may be key to whether or not ingestion leads to a beneficial, or detrimental, effect.

Binge-drinking teenagers may be putting themselves at risk for future osteoporosis and bone fractures, according to new research.

A new study finds that mammals with larger brains--relative to body size--tend to live longer.