embryos
New Techniques Detail Embryos’ First Hours and Days
New Techniques Detail Embryos’ First Hours and Days
Jef Akst | Dec 1, 2017
New technologies reveal the dynamic changes in mouse and human embryos during the first week after fertilization.
Scientists Doubt Results of CRISPR’d Embryos
Scientists Doubt Results of CRISPR’d Embryos
Aggie Mika | Aug 31, 2017
Six scientists question the authors’ conclusions about the DNA repair process that led to the human embryos’ correction of a defective gene.
Call for Germline Editing Moratorium
Call for Germline Editing Moratorium
Jef Akst | Mar 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.
Dinosaur Embryo Graveyard
Dinosaur Embryo Graveyard
Ed Yong | Apr 10, 2013
A treasure trove of fossilized dinosaur embryos shows signs of extremely fast growth.
Coming to Terms
Coming to Terms
Anna Ajduk and Magdalena Zernicka-Goetz | Nov 1, 2012
New noninvasive methods of selecting the most viable embryo could revolutionize in vitro fertilization.
Self-cloning Coral
Hannah Waters | Mar 1, 2012
Coral embryos broken apart by waves can continue developing into adult clones.
Coral Clones
Hannah Waters | Mar 1, 2012
The colorful and fragile start to the life of a living reef
Test-Tube Zoo Babies
Jef Akst | Mar 1, 2012
A National Zoo researcher works to perfect gamete preservation and in vitro fertilization techniques in order to better manage endangered populations.