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tag embryology developmental biology evolution

Embryonic Evolution Through Ernst Haeckel’s Eyes
Diana Kwon | May 1, 2017 | 2 min read
The 19th century biologist’s drawings, tainted by scandal, helped bolster, then later dismiss, his biogenetic law.
Multiple purple and pink renditions of stem cells appear as spherical clusters enveloped in translucent bubbles
Mammalian Embryos Might Not Need Primitive Streaks After All
Dan Robitzski | Dec 2, 2021 | 7 min read
The primitive streak, a structure that emerges during mammalian and avian gastrulation, might be a byproduct rather than a landmark of the embryonic development process.
Animals’ Embryonic Organizer Now Discovered in Human Cells
Jim Daley | May 23, 2018 | 4 min read
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.
Lasker Awards Target Developmental, Diagnostic Genetics
Rebecca Andrews | Sep 29, 1991 | 6 min read
The Laskers are among the most prestigious medical research awards in the world and among the oldest in the United States. Since they were first presented in 1944, 49 winners have gone on to win Nobel Prizes. Jordan Gutterman of the M.D. Anderson Cancer Center in Houston, executive vice president of the Albert and Mary Lasker Foundation, and director of the awards program since earlier this year, attributes the prestige of the awards to their longevity and to the "extraordinary quality&quo
A sea urchin genome project
William Wells(wells@biotext.com) | Aug 16, 2000 | 1 min read
Sea urchins are popular in developmental biology research thanks to their well defined embryology, the ease of gene transfer into eggs, and the abundance of eggs for biochemical work. Now the sea urchin genome project is off to a start with sequence from the ends of 76,020 bacterial artificial chromosome (BAC) recombinants. In the August 15 Proceedings of the National Academy of Sciences, Cameron et al. report that these sequence tag connectors (STCs) occur at an average of 10 kb apart in the s
Close up photo of a wing
Unearthing the Evolutionary Origins of Insect Wings
Jef Akst | Apr 4, 2022 | 6 min read
A handful of new studies moves the needle toward a consensus on the long-disputed question of whether insect wings evolved from legs or from the body wall, but the devil is in the details.
An illustration of green bacteria floating above neutral-colored intestinal villi
The Inside Guide: The Gut Microbiome’s Role in Host Evolution
Catherine Offord | Jul 1, 2021 | 10+ min read
Bacteria that live in the digestive tracts of animals may influence the adaptive trajectories of their hosts.
Contributors
The Scientist | Jun 1, 2020 | 3 min read
Meet some of the people featured in the June 2020 issue of The Scientist.
A Pioneer Presses Search For 'Other Side of Biology'
Gerald Edelman | Nov 13, 1988 | 4 min read
When I was a high school student, I came across Erwin Schrödingers What Is Life?. I still remember my exultant reaction—a combination of adolescent pride in feeling able to understand ideas considered beyond a young person’s means, and a genuine intellectual thrill engendered by the problems that Schrödinger addressed. Upon rereading the book, it appears to me that its major value was to provoke interest in a central problem of biology. Schrödinger’s question
Learning Your Stripes
Mary Beth Aberlin | May 1, 2017 | 3 min read
Science’s lowest common denominator has always been patterns.

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