Scientists may one day be using a new technique to potentially pick up and record key airborne forensic DNA evidence from crime scenes wiped clean of fingerprints and other trace evidence.
Molecular & Computational biology
Apr 4, 2024
0
5
Over the past 30 years, Australia's Tasmanian devil population has been afflicted with an infectious cancer that has pushed the species to near extinction. The marsupials are highly susceptible to devil facial tumor disease, ...
Plants & Animals
Mar 12, 2024
0
22
The vocalizations of humans, bats, whales, seals and songbirds vastly differ from each other. Humans and birds, for example, are separated by some 300 million years of evolution. But scientists studying how these animals ...
Evolution
Feb 29, 2024
0
280
Modern populations of fallow deer possess hidden cultural histories dating back to the Roman Empire, which should be factored into decisions around their management and conservation.
Evolution
Feb 12, 2024
0
347
A genetic analysis of bone fragments unearthed at an archaeological site in central Germany shows conclusively that modern humans—Homo sapiens—had already reached Northern Europe 45,000 years ago, overlapping with Neanderthals ...
Archaeology
Jan 31, 2024
0
564
Archaeologists have combined DNA analysis with the study of pottery to examine the spread of broomcorn millet across Eurasia, revealing how regional culinary traditions persisted even as new crops were introduced.
Archaeology
Jan 24, 2024
0
190
Nicholas Copernicus was the astronomer who, five centuries ago, explained that Earth revolves around the sun, rather than vice versa. A true Renaissance man, he also practiced as a mathematician, engineer, author, economic ...
Archaeology
Jan 4, 2024
1
189
A new study led by scientists at the Smithsonian's National Museum of Natural History identifies five new species of soft-furred hedgehogs from Southeast Asia.
Plants & Animals
Dec 21, 2023
0
65
Scientists from the Francis Crick Institute, Durham University, and MOLA Headland Infrastructure have discovered that a man who lived between AD 126–228 during the Roman period did not originally come from a rural farmstead ...
Archaeology
Dec 20, 2023
0
87
The difference in height between female and male individuals in northern Europe during the Early Neolithic (8,000–6,000 years before present, bp) may have been influenced by cultural factors, a paper published in Nature ...
Archaeology
Dec 12, 2023
0
299
Genetic testing allows the genetic diagnosis of vulnerabilities to inherit diseases, and can also be used to determine a person's ancestry. Normally, every person carries two copies of every gene, one inherited from their mother, one inherited from their father. The human genome is believed to contain around 20,000 - 25,000 genes. In addition to studying chromosomes to the level of individual genes, genetic testing in a broader sense includes biochemical tests for the possible presence of genetic diseases, or mutant forms of genes associated with increased risk of developing genetic disorders. Genetic testing identifies changes in chromosomes, genes, or proteins. Most of the time, testing is used to find changes that are associated with inherited disorders. The results of a genetic test can confirm or rule out a suspected genetic condition or help determine a person's chance of developing or passing on a genetic disorder. Several hundred genetic tests are currently in use, and more are being developed.
Since genetic testing may open up ethical or psychological problems, genetic testing is often accompanied by genetic counseling.
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