Making memories actually involves breaking our DNA, study shows

Brain cells snap strands of DNA in many more places and cell types than researchers previously thought.

The urgency to remember a dangerous experience requires the brain to make a series of potentially dangerous moves: Neurons and other brain cells snap open their DNA in numerous locations — more than previously realized, according to a new study — to provide quick access to genetic instructions for the mechanisms of memory storage.

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Is 150 years really as long as we can ever live?

The oldest person in history lived to 122

Photo by Paolo Bendandi on Unsplash
While most of us can expect to live to around 80, some people defy expectations and live to be over 100. In places such as Okinawa, Japan and Sardinia, Italy, there are many centenarians.
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Homo longi, the dragon man: Researchers identify our closest relative

In 1933, the skull of a 50-year-old male of the Homo longi species was found in China, puzzling researchers.

(CREDIT Chuang Zhao)
In 1933 a mysterious fossil skull was discovered near Harbin City in the Heilongjiang province of north-eastern China.
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Tiny genetic differences add up to big behavioral effects

Many thousands of different genetic variants are responsible for complex behavior.

Credit: AFP / Getty Images
  • Genome-wide association studies (GWAS) allow us to correlate genetic differences with behavioral traits.
  • There is no single gene that explains behavior; rather, behavior arises from the complex interaction of many different genes, each of which only plays a small role.
  • Society must be cautious as we learn more about behavioral genetics.
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CRISPR gives mosquitos contagious infertility

Could this spell the end for mosquitos?

Researchers have used CRISPR/Cas9 gene editing to target a specific gene tied to fertility in male mosquitoes.

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