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New technologies reveal the dynamic changes in mouse and human embryos during the first week after fertilization.

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image: Scientists Doubt Results of CRISPR’d Embryos

Scientists Doubt Results of CRISPR’d Embryos

By | August 31, 2017

Six scientists question the authors’ conclusions about the DNA repair process that led to the human embryos’ correction of a defective gene.

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image: Call for Germline Editing Moratorium

Call for Germline Editing Moratorium

By | March 13, 2015

In response to speculation that groups have edited the DNA of human embryos, researchers request that gene editing of human reproductive cells be halted.

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image: Dinosaur Embryo Graveyard

Dinosaur Embryo Graveyard

By | April 10, 2013

A treasure trove of fossilized dinosaur embryos shows signs of extremely fast growth.

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image: Coming to Terms

Coming to Terms

By | November 1, 2012

New noninvasive methods of selecting the most viable embryo could revolutionize in vitro fertilization.

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image: Self-cloning Coral

Self-cloning Coral

By | March 1, 2012

Coral embryos broken apart by waves can continue developing into adult clones.

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image: Coral Clones

Coral Clones

By | March 1, 2012

The colorful and fragile start to the life of a living reef

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Test-Tube Zoo Babies

By | March 1, 2012

A National Zoo researcher works to perfect gamete preservation and in vitro fertilization techniques in order to better manage endangered populations.

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