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When lab-grown embryos were exposed to Activin alone, they failed to differentiate (left). Following exposure to both WNT and Activin, distinct cell types emerged (right).
Science News

Embryos remember the chemicals that they encounter

A new study shows that embryonic cells retain a memory of the chemical signals to which they are exposed. Without these memories, cells fail organize into distinct tissue types.
Equipment in Nussenzweig lab
Awards and Honors

Gaby Maimon and Luciano Marraffini are named HHMI investigators

Maimon, who studies cognition and decision-making, and Marraffini, who studies the bacterial defense system CRISPR-Cas, are among 19 scientists nationwide to receive this designation.
Science News
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In Brief

In brief: Mutation explains why some people are more vulnerable to viral brain infection

Scientists identified mutations in a single gene that impair immunity to viruses in a region of the brain called the brain stem.
Huntington's neurons
Science News

Uncovering the early origins of Huntington’s disease

The symptoms of Huntington’s typically appear in middle age, but the disease may in fact originate much earlier. New research shows that a patient’s neural abnormalities may arise already during embryonic development—suggesting that treating the disease early may be beneficial.
Vanessa Ruta portrait
Campus News

Neuroscientist Vanessa Ruta promoted to associate professor

Ruta, who explores how brains produce such flexible responses to fixed stimuli, has been promoted to Gabrielle H. Reem and Herbert J. Kayden associate professor.
Campus News

Daniel Kronauer, who uses ants to study social behavior, is promoted

Kronauer has been promoted to associate professor. He has dedicated his laboratory to investigating the molecular basis underlying complex social behavior among insects.
Ant antennae
Science News

First mutant ants shed light on evolution of social behavior

Scientists disrupted a gene essential for sensing pheromones, resulting in severe deficiencies in the ants’ social behaviors and their ability to survive within a colony.
Dolphin eye
Science News

Researchers create interactive touchscreen for dolphins

To learn more about dolphin cognition and communication, researchers have developed an underwater touchscreen using optical technology, the first of its kind.
PENs_48328
Science News

Scientists identify a neural circuit that rotates a fly’s internal compass

Researchers have uncovered the neurons that spin a fly’s internal compass when the insect turns—the first such mechanism identified in any animal.
Science News

New research explains why a common bacterium can produce severe illness

As much as we try to avoid it, ­we are constantly sharing germs with those around us. But even when two people have the same infection, the resulting illnesses can be dramatically different—mild for one person, severe or even life-threatening for the other. Now, new research from The Rockefell...
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