Latest Karen Warkentin Stories
Boston University undergraduate Jessica Rogge and associate professor Karen Warkentin, working at the Smithsonian Tropical Research Institute's laboratories in Gamboa, Panama, discovered that frog embryos at a very early developmental stage actively respond to oxygen levels in the egg
When our distant ancestors were making their way out from the water, they had to evolve a way to lay their eggs on land. Now a tree frog could help shed light on this mysterious, pivotal moment in history.
- In medieval musical notation, a sign or neume denoting a shake or trill.