A Woman of Firsts, Early 20th Century
A Woman of Firsts, Early 20th Century
Florence Sabin was known for her pioneering research and efforts to support women in science.
A Woman of Firsts, Early 20th Century
A Woman of Firsts, Early 20th Century

Florence Sabin was known for her pioneering research and efforts to support women in science.

Florence Sabin was known for her pioneering research and efforts to support women in science.

embryo
China Sentences Gene-Editing Scientist to Three Years in Jail
China Sentences Gene-Editing Scientist to Three Years in Jail
Emily Makowski | Dec 30, 2019
The modification of three babies’ genes by He Jiankui drew widespread criticism from scientists.
Photos of the Year
Photos of the Year
Emily Makowski | Dec 26, 2019
From bubbling plants to endangered whales, here are some amazing images from The Scientist in 2019.
Early Embryo Models Generated from Mouse Stem Cells
Early Embryo Models Generated from Mouse Stem Cells
Abby Olena | Oct 17, 2019
Extended pluripotent stem cells from mice can self-organize to form blastocyst-like structures called blastoids that enable a closer look at early mammalian development.
First Human–Monkey Chimeras Developed in China
First Human–Monkey Chimeras Developed in China
Nicoletta Lanese | Aug 5, 2019
The researchers aim to grow transplantable human organs from primate embryos.
Turtle Embryos May Have a Say in Deciding Their Sex
Turtle Embryos May Have a Say in Deciding Their Sex
Katarina Zimmer | Aug 1, 2019
In a species of freshwater turtle, embryos can move toward warmer or cooler environments within the egg and thus help choose their sexual destiny, but not all experts are convinced.
Scientists Push for a Moratorium on Human Germline Editing
Scientists Push for a Moratorium on Human Germline Editing
Ashley Yeager | Mar 13, 2019
After the reported birth of CRISPRed babies in China, experts want to take time to consider the scientific, social, ethical, and philosophical consequences of editing heritable human DNA.
Doctors Report World’s Second Case of “Semi-Identical” Twins
Doctors Report World’s Second Case of “Semi-Identical” Twins
Catherine Offord | Feb 28, 2019
The extremely rare event, thought to be caused by two sperm cells fertilizing the same egg simultaneously, was last reported in 2007.
Image of the Day: Cellular Tracks
Image of the Day: Cellular Tracks
Carolyn Wilke | Jan 21, 2019
To study the fate of stem cells in developing chick embryos, researchers trace their steps over time.
Image of the Day: Embryo in Blue
Image of the Day: Embryo in Blue
Carolyn Wilke | Jan 7, 2019
A bright blue stain highlights the sensory nerves of a developing mouse embryo.