Humans
We summarize the week's scientific breakthroughs every Thursday.
- Anthropology
New footprint finds suggest range of body sizes for Lucy’s species
Tracks discovered in Tanzania appear to have belonged to the tallest known Australopithecus afarensis individual, but stature estimates can be tricky.
- Genetics
Proteins that reprogram cells can turn back mice’s aging clock
Proteins that reprogram adult cells to an embryonic-like state can rejuvenate prematurely aging mice.
- Health & Medicine
Birth defects occur in 1 in 10 pregnancies with first trimester Zika infection
About 6 percent of U.S. women infected with Zika virus have infants or fetuses with birth defects, according to preliminary CDC results. For women infected in the first trimester, the number is even higher: nearly 11 percent.
- Health & Medicine
Year in review: Zika virus devastates Brazil and spreads fear across Americas
The increase in microcephaly in Brazil has spread fear of Zika infection across the Americas.
- Genetics
Year in review: ‘Three-parent baby’ technique raises hope and concern
Safety and ethical concerns surround controversial mitochondrial replacement therapy.
- Genetics
Year in review: How humans populated the globe
DNA studies put new twists on timing of ancient human migrations – but genetics alone are not enough to tell the full story.
- Neuroscience
Year in review: Alzheimer’s drug may clarify disease’s origins
Researchers will now test whether a treatment that swept away amyloid brain plaques also improves cognitive performance.
- Oceans
Readers contemplate corals and more
Coral engineering, ancient almanacs and more in reader feedback.
- Health & Medicine
The fight against infectious diseases is still an uphill battle
The fight against infectious diseases is far from over. The last several decades have seen many outbreaks and global pandemic scares.
- Health & Medicine
Number of teens who report doing drugs falls in 2016
Drug use is down among teens, survey finds.
- Life
Zika induces brain cell die-off
Cell biologists are learning more about how the Zika virus disrupts brain cells to cause microcephaly.
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