Image of the Day: Cellular Tracks
Image of the Day: Cellular Tracks
To study the fate of stem cells in developing chick embryos, researchers trace their steps over time.
Image of the Day: Cellular Tracks
Image of the Day: Cellular Tracks

To study the fate of stem cells in developing chick embryos, researchers trace their steps over time.

To study the fate of stem cells in developing chick embryos, researchers trace their steps over time.

endoderm
Sea Anemones Illuminate the Evolution of Embryo Development
Sea Anemones Illuminate the Evolution of Embryo Development
Abby Olena | Sep 11, 2017
A study of a simple marine animal suggests that the common ancestor of cnidarians and bilaterians may have had three germ layers instead of two.