Life
- Life
For blood stem cells, the force is strong
Blood flow boosts production of blood stem cells, two new studies show.
- Chemistry
How RNA got started
Scientists identify chemical reactions that could be responsible for the origin of life.
- Life
Misread epigenetic signals play role in leukemia
A genetic mistake causes misinterpretation of epigenetic marks, leading to cancer.
- Animals
Controversial polar bear rule stands
Creature’s plight remains separate from decisions on greenhouse gas emissions.
- Archaeology
Biocides inducing resistance in Lascaux cave’s microbes
Study makes researchers wonder whether they should treat fungus or not.
- Life
Suppress-the-mob gene found in queen termites
Gene may help keep workers from illicit, royalty-threatening reproduction.
- Animals
Basking sharks head south for winter
Satellite-tagging data suggest that basking sharks migrate south to the Caribbean in winter.
- Earth
U.S. radiation dose has doubled
New analysis finds radiation-based medical procedures have skyrocketed.
- Life
Portuguese trove of trilobite fossils
Fossils include largest known trilobite specimen and groups of the ancient arthropods caught in the act of molting and spawning.
- Earth
Report of earlier, longer puberty in girls
A Danish study finds young girls are entering puberty notably earlier than 15 years ago — for reasons that remain unknown.
- Health & Medicine
Narcolepsy linked to immune system
Genome association study finds a second connection between the sleep disorder and the body's disease-fighting apparatus
- Life
Ants may be the Undead
Living Argentine ant workers may carry the chemical signatures of death along with an override signal that says, "No undertaker needed yet."
