<em>Alu </em>Leap May Explain Why Apes Don&rsquo;t Have Tails
Alu Leap May Explain Why Apes Don’t Have Tails
A transposable element that jumped into the TBXT gene, which is linked to tail morphology, appears to be to blame for our missing appendage.
Alu Leap May Explain Why Apes Don’t Have Tails
Alu Leap May Explain Why Apes Don’t Have Tails

A transposable element that jumped into the TBXT gene, which is linked to tail morphology, appears to be to blame for our missing appendage.

A transposable element that jumped into the TBXT gene, which is linked to tail morphology, appears to be to blame for our missing appendage.

embryonic development
Human-Monkey Chimeras Shed Light on Development
Human-Monkey Chimeras Shed Light on Development
Abby Olena | Apr 15, 2021
Human stem cells injected into early monkey embryos proliferate and contribute to multiple cell lineages over 20 days of embryonic development.
Lab-Grown Mouse Embryos Form Limbs and Organs
Lab-Grown Mouse Embryos Form Limbs and Organs
Lisa Winter | Mar 19, 2021
The embryos completed one-third of their total gestation outside of a uterus.
Identical Twins Accumulate Genetic Differences in the Womb
Identical Twins Accumulate Genetic Differences in the Womb
Catherine Offord | Jan 7, 2021
DNA replication errors during cell division cause monozygotic twins to diverge from each other even during the earliest stages of development, a new study finds.
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.
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.
First Mouse Embryos Made from Two Fathers
First Mouse Embryos Made from Two Fathers
Abby Olena | Oct 11, 2018
The bipaternal pups died soon after birth, but mice with two mothers grew into fertile adults.
Image of the Day: The Birth of a Nervous System
Image of the Day: The Birth of a Nervous System
Jef Akst | Oct 2, 2018
The winner of the 2018 Nikon Small World in Motion video competition shows the development of sensory neurons in a zebrafish embryo.
In Their Earliest Days, Embryos Record Their Environments
In Their Earliest Days, Embryos Record Their Environments
Kerry Grens | Oct 1, 2018
Methylation patterns at so-called metastable epialleles in the genome stamp a memory into each of our cells.
Animals’ Embryonic Organizer Now Discovered in Human Cells
Animals’ Embryonic Organizer Now Discovered in Human Cells
Jim Daley | May 23, 2018
The finding confirms that a cluster of cells that directs the fate of other cells in the developing embryo is evolutionarily conserved across the animal kingdom.
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.
Infographic: How Embryos Take Control of Their Own Development
Infographic: How Embryos Take Control of Their Own Development
Jef Akst | Nov 30, 2017
The switch from maternal factors involves dynamic reprogramming of the zygotic genome.
How a Sleep-Associated Hormone Affects Murine Tooth Development
How a Sleep-Associated Hormone Affects Murine Tooth Development
Mallory Locklear | Aug 22, 2016
Disrupting the light/dark cycles of pregnant mice, researchers observe detrimental effects in the mouths of the animals’ pups.
Research at Micro- and Nanoscales
Research at Micro- and Nanoscales
Mary Beth Aberlin | Jun 1, 2016
From whole cells to genes, closer examination continues to surprise.
 
Mice Develop with Human Stem Cells
Mice Develop with Human Stem Cells
Karen Zusi | Dec 21, 2015
Human embryonic stem cells and induced pluripotent stem cells participated normally in early mouse embryo development in a recent study.
Leaving an Imprint
Leaving an Imprint
Anna Azvolinsky | Aug 1, 2015
Among the first to discover epigenetic reprogramming during mammalian development, Wolf Reik has been studying the dynamics of the epigenome for 30 years.