2,468 results
2,468 results for: mutations
- Anthropology
Coasting to Asia in the Stone Age
New genetic analyses of people from native island groups in Southeast Asia support the unconventional view that around 70,000 years ago, people living in Africa crossed the Red Sea and moved east along Asia's southern coast.
- Anthropology
Founding Families: New World was settled by small tribe
A new genetic analysis indicates that only about 200 to 300 people crossed the ice age land bridge from Asia to become the founding population of North America.
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Cell death may spur aging
Genetic mutations in cells' internal powerhouses could contribute to aging by stifling tissue maintenance.
- Life
The reason to avoid poop coffee isn’t what you think
Beans from civet feces have become so popular that abuse and fraud are common.
- Humans
What makes a face go round
Genetic enhancers acting far away from their intended genes can help shape a face during development.
- Animals
The daemon cat that never was
Buried in a volume published in 1904 is a description of a new species of cat found in Transcaucasia: Felis daemon, the Black Wild Cat.
- Genetics
DNA changes may show how whales adapted to water
Comparing the genetic material of whales has revealed DNA changes that may have helped the animals adapt to aquatic environments.
- Life
H7N9 flu still better adapted to infect birds over humans
The proteins from the avian flu appear better suited for attaching to bird, not human, molecules.
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- Animals
Leaping land fish avoids predators by blending in
The Pacific leaping blenny avoids being eaten by predators by blending into its rocky habitat.
- Microbes
Bacteria turn threatening in tests with immune cells
In less than 30 days, nonthreatening E. coli can transform into dangerous microbes in mice.
- Neuroscience
All mice are the same, until they’re not
A new study shows substantial differences in how two closely related mouse strains respond to drugs. It offers new options for linking genes and behavior and may change how scientists think about the similarity of their mouse strains.
