Watch a 3D video reveal how sperm really swim
Technique is much more chaotic than researchers believed
Biology
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Scientists pull living microbes, possibly 100 million years old, from beneath the sea
Bacteria 75 meters below the sea floor began to divide after a light snack -
Ancient microbial arms race sharpened our immune system—but also left us vulnerable
Study traces genetic responses to pathogens back more than 600,000 years to the ancestor of Neanderthals and humans -
Controversial DNA modification could play key role in placenta development
In mice, methylated adenine enabled the placenta to grow -
How many hot dogs can a person really scarf down in 10 minutes?
Study suggests competitive eaters have yet to reach the body’s limit -
New method to edit cell’s ‘powerhouse’ DNA could help study variety of genetic diseases
A bacterial toxin cracks open door to new precision-editing tool for DNA in mitochondria -
Pools in the Mexican desert are a window into Earth’s early life
Drainage threatens unique microbes in Cuatro Ciénegas oasis -
Computer algorithms find tumors’ molecular weak spots
Approach to identifying the best drug targets gets critical test -
Balls of cells mimic an unseen stage of human embryo development
Structures made from stem cells model the point at which the human body begins to take shape -
Abortion opponents protest COVID-19 vaccines’ use of fetal cells
Two candidates on White House short list will receive up to $1.7 billion -
Designer antibodies fight cancer by tethering immune cells to tumor cells
Bispecific antibodies that bind two or more targets are the latest immunotherapy to shine in clinical trials -
These bacteria have adapted to life in your nose—and that may be good news
Microbes may shield you from allergies and disease -
Immune cells blast infections and cancer with protein ‘bombs’
Cells use complex containers to launch toxic chemicals at their victims -
Meet the ‘psychobiome’: the gut bacteria that may alter how you think, feel, and act
Scientists hope to turn gut microbes or their products into new antidepressants or drugs for other brain disorders -
Rare ‘killer’ mutations present at birth could be taking years off your life
Exceedingly uncommon variants present at birth that can destroy gene function -
The Neanderthal DNA you carry may have surprisingly little impact on your looks, moods
Icelanders can’t blame Neanderthals for their red hair and freckles, new study says