News in Brief
- Paleontology
Ancient oceans’ top predator was gentle filter feeder
New fossils suggest that a distant relative of lobsters used bristled limbs to net its prey, not spike it.
- Planetary Science
Icy planetoid found lurking at edge of solar system
Astronomers discovered an icy planetoid orbiting beyond the edge of the Kuiper belt.
- Life
When hummingbirds fly unfriendly skies
Hummingbirds hover easily in turbulent air as long as the disturbances aren’t too wide.
- Health & Medicine
E-cigarettes don’t help smokers quit, study finds
People who tried e-cigarettes no more likely to give up smoking a year later.
- Genetics
Mice lose a gene to drop some weight
Mice lacking gene have less fat, more muscle and lived longer than normal.
- Plants
Fossil fern showcases ancient chromosomes
Fossil nuclei and chromosomes seen in a 180-million-year-old fern reveals that the plants have stayed mostly the same.
- Climate
Climate change may spread Lyme disease
The territory of the ticks that transmit Lyme disease is growing as the climate warms.
- Life
Vitamin A deficit in the womb hurts immune development
Mice deprived of vitamin A in utero grow up with undersized immune organs.
- Genetics
Early Polynesians didn’t go to Americas, chicken DNA hints
Contamination of ancient chicken DNA may explain previous report linking Polynesians to South America.
- Genetics
Giant moa thrived before people reached New Zealand
Humans probably caused the extinction of giant wingless birds called moa in New Zealand, DNA evidence suggests.
- Materials Science
World’s thinnest material stretches, bends, twists
Graphene, the thinnest known material at one carbon atom thick, can be manipulated under the microscope using tricks from a variety of paper-cutting origami called kirigami.
- Astronomy
Mature galaxies found in young universe
Inactive galaxies the size of the Milky Way found dating to when the universe was just 1.5 billion years old.
