Jordana Cepelewicz

Staff Writer

Art for "To Heal Some Wounds, Adult Cells Turn More Fetal"
developmental biology

To Heal Some Wounds, Adult Cells Turn More Fetal

Once again, body cells reveal unexpected plasticity: In a newly discovered type of wound healing, which some researchers call “paligenosis,” adult cells revert to a more fetal state.

Abstractions blog

How Insulin Helped Create Ant Societies

Evolution may have coopted an ancient metabolic mechanism to set social insects on the path toward one of the most puzzling behaviors found in nature.

Abstractions blog

Why Nature Prefers Couples, Even for Yeast

Some species have the equivalent of many more than two sexes, but most do not. A new model suggests the reason depends on how often they mate.

Art for "To Make Sense of the Present, Brains May Predict the Future"
neuroscience

To Make Sense of the Present, Brains May Predict the Future

A controversial theory suggests that perception, motor control, memory and other brain functions all depend on comparisons between ongoing actual experiences and the brain’s modeled expectations.

Photo of Lisa Manning
Q&A

The Physics of Glass Opens a Window Into Biology

The physicist Lisa Manning studies the dynamics of glassy materials to understand embryonic development and disease.

Illustration for "Overtaxed Working Memory Knocks the Brain out of Sync"
neuroscience

Overtaxed Working Memory Knocks the Brain Out of Sync

Researchers find that when working memory gets overburdened, dialogue between three brain regions breaks down. The discovery provides new support for a larger concept about how the brain works.

Art for "A Thermodynamic Answer to Why Birds Migrate"
ecology

A Thermodynamic Answer to Why Birds Migrate

New modeling studies suggest that birds migrate to strike a favorable balance between their input and output of energy.

Lede art for Embryo Development
developmental biology

Scientists Map the Genetic Steps as Eggs Become Animals

For the first time, researchers have traced the genetic programs that guide the development of each cell in early embryos. Surprisingly, even cells that start out different can end up the same.

Lede art for "Chronological Clues to Life’s Early History Hide in Gene Transfers"
Abstractions blog

Chronological Clues to Life’s Early History Lurk in Gene Transfers

To date the branches on the evolutionary tree of life, researchers are looking at horizontal gene transfers among ancient microorganisms, which once seemed only to muddle the record.