Stem cell model offers first glimpse of early human development

It's one of life's most defining moments—that crucial step in embryonic development, when an indistinct ball of cells rearranges itself into the orderly three-layered structure that sets the stage for all to come. Known ...

Big bang: Dutch firm eyes space baby

Climate crises, nuclear Armageddon, or a sudden meteor strike—it's clear humanity could do with Planet B. But first we need to learn to reproduce safely in space, says Dutch entrepreneur Egbert Edelbroek.

Deep freezing native plants at risk of extinction

A process similar to that used to store human embryos is being used by scientists at The University of Queensland to save native Australian plants under threat from the invasive fungus, myrtle rust.

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Embryo

An embryo (irregularly from Greek: ἔμβρυον, plural ἔμβρυα, lit. "that which grows," from en- "in" + bryein "to swell, be full"; the proper Latinate form would be embryum) is a multicellular diploid eukaryote in its earliest stage of development, from the time of first cell division until birth, hatching, or germination. In humans, it is called an embryo until about eight weeks after fertilization (i.e. ten weeks LMP), and from then it is instead called a fetus.

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