hESCs, evolution
Stem Cells Made Waves in Biology and Medicine
Stem Cells Made Waves in Biology and Medicine
Karen Zusi | Oct 1, 2016
Since their introduction to the lab, pluripotent stem cells have gone from research tool to therapeutic, but the journey has been rocky.
How Plants Evolved Different Ways to Make Caffeine
How Plants Evolved Different Ways to Make Caffeine
Ruth Williams | Sep 20, 2016
Caffeine-producing plants use three different biochemical pathways and two different enzyme families to make the same molecule.
Stingrays Chew Too
Stingrays Chew Too
Ben Andrew Henry | Sep 15, 2016
Researchers observe stingrays moving their jaws to grind up prey, a behavior thought to be restricted to mammals.
Week in Review: September 5–9
Week in Review: September 5–9
Jef Akst | Sep 9, 2016
Environmental magnetite in the human brain; prion structure takes shape; watching E. coli evolve in real time; learning from others’ behavior 
Giant Petri Dish Displays Evolution in Space and Time
Giant Petri Dish Displays Evolution in Space and Time
Jenny Rood | Sep 8, 2016
As E. coli bacteria spread over increasingly concentrated antibiotics, researchers discover novel evolutionary pathways that confer resistance.
Promoting Protein Partnerships
Promoting Protein Partnerships
Ruth Williams | Sep 1, 2016
Scientists generate new protein-protein interactions at an impressive PACE.
Protein or Perish
Protein or Perish
Ruth Williams | Aug 31, 2016
A bacteriophage must evolve certain variants of a protein or die.
Extinct River Dolphin Species Discovered
Extinct River Dolphin Species Discovered
Alison F. Takemura | Aug 16, 2016
Overlooked for half a century, a skull in the Smithsonian collection points to a dolphin species that lived 25 million years ago, according to a study.
Using RNA to Amplify RNA
Using RNA to Amplify RNA
Abby Olena | Aug 15, 2016
Researchers apply in vitro evolution to generate an RNA enzyme capable of copying and amplifying RNA.
Pesticide Resistance in a Plant Organelle Drives Down Whole-Genome Diversity
Pesticide Resistance in a Plant Organelle Drives Down Whole-Genome Diversity
Catherine Offord | Aug 1, 2016
A chloroplast mutation has dramatically affected the genomes of railside populations of Arabidopsis thaliana.