New technologies have brought new significance to a set of fossilized jaws that Stephen Gatesy and colleagues found in Greenland 20 years ago. Their new analysis shows that proto-mammals were diversifying earlier than previously thought.(more…)
ANN ARBOR — The sponginess of the environment where human embryonic stem cells are growing affects the type of specialized cells they eventually become, a University of Michigan study shows.
The researchers coaxed human embryonic stem cells to turn into working spinal cord cells more efficiently by growing the cells on a soft, utrafine carpet made of a key ingredient in Silly Putty. Their study is published online at Nature Materials on April 13. (more…)