Life
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Life
Tree cricket song has note of variability
Wings’ length, individual segments allow species to produce mating calls in range of frequencies.
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Life
Shot may top acupuncture for pain relief
Carefully placed enzyme injection has a long-lasting effect in mice.
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Life
Bony bacteria
A newly described species of blue-green algae builds hard structures inside its cells.
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Humans
DNA tracks ancient Mediterranean farmers to Scandinavia
Modern genetic profile emerged from mating with resident hunter-gatherers, a new study suggests.
By Bruce Bower -
Life
Larvae sustain comb jelly population
Species thrives in Baltic Sea despite never reaching adulthood.
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Life
Albatross forage with fractal-like flight
New data offer support for a modified mathematical pattern in birds’ hunting behavior.
By Devin Powell -
Life
Bacteria, insects join forces against pesticide
Microbes in gut, rather than genetic changes, allow insects to develop chemical resistance.
By Devin Powell -
Life
Polar bears older than previously thought
New analysis reveals that the Arctic species dates back to about 600,000 years ago.
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Chemistry
Synthetic heredity molecules emulate DNA
Scientists have created six XNAs that, like the genetic building blocks they mimic, can store and pass on hereditary information.