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Mammalian Embryos Might Not Need Primitive Streaks After All
Mammalian Embryos Might Not Need Primitive Streaks After All
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.
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.
embryo, evolution
Scientists Push for a Moratorium on Human Germline Editing
Ashley Yeager | Mar 13, 2019 | 3 min read
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.
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.
From Smugglers to Scientists: New Dino Species Described
Erin Hare | May 9, 2017 | 4 min read
The infamous "Baby Louie" embryo is a giant oviraptorosaur fossil from China that resembled a gargantuan bird.
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.
Foresight
Karen Hopkin | Jul 1, 2011 | 9 min read
Studying the earliest events in visual development, Carla Shatz has learned the importance of looking at one’s data with open eyes—and an open mind.