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Embryology

Life

Colonies of single-celled creatures could explain how embryos evolved

We know little about how embryonic development in animals evolved from single-celled ancestors, but simple organisms with a multicellular life stage offer intriguing clues

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Embryos pause development when nutrients are low — and now we know how

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A mouse embryo that has paused its development due to nutrient depletion

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The development of embryos may be less shaped by genes than we thought

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A scanning electron micrograph of mammalian embryonic stem cells
Mice with forebrains composed of rat and mouse cells

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Mice grown with rat brains to help study cross-species organ donation

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What are 'synthetic embryos' and why are scientists making them?

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Life

Stunning image shows the developing nervous system in a chick embryo

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An embryo developing in the uterus at 8 weeks, 9 weeks and 10 weeks

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Miscarriages may be more likely to occur with slow developing embryos

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The amazing ways electricity in your body shapes you and your health

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The amazing ways electricity in your body shapes you and your health

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A synthetic mouse embryo (left) and a natural mouse embryo (right) show comparable brain and heart formation

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Synthetic reproductive cells will help us understand fertility in 2023

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A hair follicle generated from hair organoids - tiny, simple versions of an organ

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Hair follicles grown in the lab in a step towards hair loss treatment

By modifying the embryonic skin cells of mice, researchers created hair follicles that grew up to 3 millimetres long over one month

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Synthetic (left) and natural (right) embryos to show comparable brain and heart formation.

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Synthetic mouse embryos with rudimentary brain grown in the lab

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Insight into early embryos could explain why some pregnancies fail

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Insight into early embryos could explain why some pregnancies fail

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Monkey-human blastocyst

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Human cells grown in monkey embryos raise ethical concerns

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Embryos reverse ageing to become younger than when they first formed

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Embryos reverse ageing to become younger than when they first formed

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