Humans
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- Animals
Infectious animals
Critters spread many germs that can sicken each other — and even kill people.
- Animals
Explainer: People can sicken animals
Wildlife can sometimes become infected with germs shed by people.
- Life
Stem cells: The secret to change
Unusual, versatile cells hold the key to regrowing lost tissues.
- Health & Medicine
Deadly new virus emerges
A mysterious infection has been spreading for almost a year.
- Health & Medicine
The AIDS virus that vanished
Strong medicine may have rid a newborn of deadly HIV.
- Environment
Bad for breathing
New study connects pollution to several common diseases that affect the lungs and airways.
- Animals
Cool Jobs: Museum science
Samples collected long ago may hold answers to important questions in science and medicine today.
- Brain
Concussion: More than ‘getting your bell rung’
This common brain injury can cause serious — and lasting — damage.
- Archaeology
The return of a king
The 15th century’s Richard III has returned — or at least, his bones have.
