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developmental biology

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developmental biology

What Makes Life Tick? Mitochondria May Keep Time for Cells

By Viviane Callier
September 18, 2023
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Every species develops at its own unique tempo, leaving scientists to wonder what governs their timing. A suite of new findings suggests that cells use basic metabolic processes as clocks.

developmental biology

Why Insect Memories May Not Survive Metamorphosis

By Yasemin Saplakoglu
July 26, 2023
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The reshuffling of neurons during fruit fly metamorphosis suggests that larval memories don’t persist in adults.

A chemically stained mouse embryo and mouse embryo model against a black background.
developmental biology

‘Embryo Models’ Challenge Legal, Ethical and Biological Concepts

By Philip Ball
June 13, 2023
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With embryolike constructs built entirely from stem cells, researchers can revolutionize our understanding of development. But how close to an embryo is too close?

Underside of a skate embryo, stained in blue, on a salmon pink background.
evolution

How 3D Changes in the Genome Turned Sharks Into Skates

By Viviane Callier
May 30, 2023
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Changes in the 3D structure of their genome gave skates and rays their distinctive winglike fins and pancake flatness.

Artist’s conception of a large carnivorous dinosaur skull and the skeleton of a much smaller theropod staring at each other.
dinosaurs

Dinosaur Bone Study Reveals That Not All Giants Grew Alike

By Anna Gibbs
March 20, 2023
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A survey of prehistoric bones reveals that T. rex and some of its cousins had more than one way to reach enormous sizes. Evolution may have preserved that variation in modern animals too.

An African army ant queen and worker against a white background, emphasizing the huge difference in their sizes
aging

Ants Live 10 Times Longer by Altering Their Insulin Responses

By Viviane Callier
January 10, 2023
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Queen ants live far longer than genetically identical workers. Researchers are learning what their longevity secrets could mean for aging in other species.

2022 in Review

The Year in Biology

By John Rennie
December 21, 2022
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Momentum for new ideas in Alzheimer’s research joined advances in neuroscience, developmental biology and origin-of-life studies to make 2022 a memorable year of biological insights.

A detailed scan of a zebra fish as seen from above.
developmental biology

The Gut Microbiome Helps Social Skills Develop in the Brain

By Joanna Thompson
November 15, 2022
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New research in fish suggests that gut microbes can have a crucial early influence on the brain’s social development.

Sergiu Paşca in his lab at Stanford University, in front of a rack of equipment.
Q&A

Human Brains Are Hard to Study. He Grows Useful Substitutes.

By Claudia Dreifus
October 12, 2022
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With stem cell technology and lab-grown brain organoids, Sergiu Paşca seeks the causes of autism and other neuropsychiatric conditions.


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