Ahead of the pack

new stem cell credit @ Mpi Muenster:dpa:Corbis

The newly found type of stem cell may be easier to grow in the lab than current embryonic stem cells (shown here). Credit@Mpi Muenster/dpa/Corbis

The newly found type of stem cell may be easier to grow in the lab than current embryonic stem cells (shown here). Credit@Mpi Muenster/dpa/Corbis