DNA, evolution, neuroscience
New Brain Stem Cell
Cristina Luiggi | Apr 23, 2012
Progenitor cells discovered in the brain’s small blood vessels have the capacity to differentiate into neurons and other tissue types.
Polar Bear More Ancient Than Realized
Jef Akst | Apr 20, 2012
A genetic analysis reveals that the polar bear split from the brown bear some 600,000 years ago.
Synthetic Genetic Evolution
Ruth Williams | Apr 19, 2012
Scientists show that manmade nucleic acids can replicate and evolve, ushering in a new era in synthetic biology.
Brain Controls Paralyzed Muscles
Ed Yong | Apr 18, 2012
A new system decodes brain signals from the motor cortex of monkeys and translates them into basic arm movements, despite temporary paralysis.
Scottish DNA Unexpectedly Diverse
Bob Grant | Apr 18, 2012
Geography might explain the treasure trove of genetic diversity among Scots.
Forgetting Drug Addiction
Cristina Luiggi | Apr 16, 2012
Researchers weaken the memories of drug use in recovering addicts.
Monkeys “Read” Writing
Megan Scudellari | Apr 12, 2012
Baboons are able to distinguish printed English words from nonsense sequences of letters—the first step in the reading process.
Anti-science in Tennessee Classrooms
Bob Grant | Apr 12, 2012
A new law opens the door to teaching creationism and climate change denialism in the state's public schools.
Inferring DNA from RNA
Jef Akst | Apr 11, 2012
A new technique to derive DNA information from non-DNA sources, such as RNA, threatens the anonymity of genetic database donors.
Insect Battles, Big and Small
Megan Scudellari | Apr 10, 2012
Social insect soldiers not only protect the colony from insect invasions; some also secrete strong antifungal compounds to kill microscopic enemies.