Life
We summarize the week's scientific breakthroughs every Thursday.
- Paleontology
How arthropods got their legs
New fossils reveal how arthropods evolved branching limbs.
- Life
Chickens to blame for spread of latest deadly bird flu
Chickens are responsible for the second wave of H7N9 bird flu in China.
- Animals
Flowers make the menu for nearly all Galapagos birds
Almost every species of Galapagos land bird has been found feeding on the nectar and pollen of flowers. Such an expansion of diet has never before been observed.
- Neuroscience
Electrical zap of cells shapes growing brains
The electric charge across cell membranes directs many aspects of brain development, and changing it can fix certain brain birth defects.
- Neuroscience
Mapping aggression circuits in the brain
Using optogenetics and other techniques, scientists are tracing connections to and from the brain’s aggression command center.
- Life
Experimental herpes vaccine works in mice
An experimental herpes vaccine works in animal tests by using an approach starkly different from that used in previous vaccine development.
- Animals
Hummingbird may get promoted
Not just a subspecies: A flashy, squeaky hummingbird should become its own species, ornithologists argue.
- Life
Life’s origin might illustrate the power of game theory
Game theory math can describe molecular competition and cooperation, perhaps providing clues to the origin of life.
- Paleontology
Possible ancestor of sponges found
An exquisitely preserved 600-million-year-old fossil from China has cell types and a shape resembling sponges, thought to be among the first multicellular animals to evolve.
- Genetics
Protein comparisons proposed in 1960s for tracking evolution
In 1965, two scientists spotted molecular signatures of primate divergence. The tool became widespread for studying evolution – and one researcher’s career ended in crime.
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- Ecosystems
When animals invade human spaces
‘Feral Cities’ explores the wildlife living amongst us, sometimes noticed and sometimes not.
