The cell fragments play a role in the body’s first line of defense against bacterial infection, helping white blood cells grab blood-borne bacteria in the liver.
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Rules regarding the use of cells derived from human embryos will deny many US researchers the chance to study new stem-cell lines created by cloning.
Highways and byways are among the man-made environmental alterations driving the evolution of animals on contemporary timescales, with implications for ecology.
Raising one evolutionary question after another, Brandon Gaut has harvested a crop of novel findings about how plant genomes evolve.
Yale University evolutionary biologist Steven Brady studies the evolutionary impacts of roads on the amphibians.
Malaria parasites transmitted via mosquitoes elicit a more effective immune response and cause less severe infection than those directly injected into red blood cells.
Despite cicadas’ high profile, scientists still don’t fully understand when and why they decide it is time to mate.
Long-term stroke patients involved in a small-scale clinical trial of a neural stem-cell therapy show signs of recovery.
A study demonstrating the production of human stem cells through cloning contained several mislabeled images, but the authors insist the results are real.
The activity of one type of immune cell helps regrow the limbs of amputated salamanders.
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