Life
- Life
Leprosy bacterium changed little in last millennium
Genome alterations probably not responsible for decline in disease prevalence.
- Life
Primitive fish could nod but not shake its head
Ancient fossils reveal surprises about early vertebrate necks, abdominal muscles.
- Animals
In the Eye of the Tiger
Global spread of Asian tiger mosquito could fuel outbreaks of tropical disease in temperate regions.
- Life
In the real world, cheetahs rarely go all out
Famous for speed, the big cats actually rely on acceleration and maneuverability to capture prey.
- Life
Nail-generating tissue also regrows fingertips
Stem cells spur return of amputated digits in mice
- Animals
Now-extinct wolf may be ancestor of modern-day dogs
No strong signs of canine ancestry among living grey wolves.
- Life
As Brood II emerges, questions remain about cicada cycles
The how and why of years lived underground are among the unsolved mysteries about the loud, obvious insects.
- Neuroscience
Research prods brain wiring underlying compulsive behavior
Complementary studies, focusing on repetitive grooming in mice, offer potential for new treatment strategies in humans.
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- Paleontology
Fossil sheds light on early primates
Partial skeleton near root of monkey, ape and human line.
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