Microbes
- Life
Cell recount: People host far fewer germs
Since the 1970s, microbiologists have been saying bacteria outnumber human cells in our bodies by about 10-to-1. A new analysis says that old number was a “fake” fact — and gross exaggeration.
- Health & Medicine
Explainer: What is skin?
The body’s soft, outer armor contains three layers, each with its own important role to play.
- Health & Medicine
The truth about zits
A common bacterium called P. acnes usually helps keep the skin healthy. But under some conditions, and especially during puberty, it can trigger painful, embarrassing outbreaks of unsightly pimples.
- Earth
Bubbles may have sheltered Earth’s early life
For Earth’s earliest inhabitants, a bubble on the beach would have been the next best thing to a safety blanket.
- Microbes
Fossils show sign of ancient vampire microbes
Scientists have found 750-million-year-old fossils of cells with puncture wounds. This appears to offer evidence that vampirelike creatures sucked them dry.
- Microbes
Slime cities
Biofilms are like tiny cities of bacteria — some harmless, others destructive. Scientists are learning how to keep these microscopic metropolises under control.
- Genetics
The earliest evidence of plague
Plague is best known as the killer disease that wiped out nearly half of Europe during the 1300s. But the germ infected people up to 3,000 years earlier than that, DNA from ancient teeth now show.
- Environment
Mealworms chow down on plastic
Gut bacteria in mealworms break down polystyrene. Feeding plastic to the worms, or the germs they carry, could be a way to get rid of these wastes.
- Earth
The dirt on soil
More than just dirt, soils teem with microbes essential for growing crops. Soils also help prevent floods and even play a role in climate change.
- Microbes
News Brief: People shed clouds of tell-tale germs
Even after someone has left a room, a cloud of his or her germs laces the air, new data show. Watch out: That mix can be very individual — and even ID you!
- Animals
Cool Jobs: Finding new uses for nature’s poisons
Scientists study toxins and other natural compounds in search of alternatives to ineffective antibiotics and dangerous pesticides.
- Health & Medicine
Nobel goes for developing drugs from nature
The 2015 Nobel Prize in medicine went to scientists who used nature as the model for important human drugs to combat malaria and serious infections.
