In a boost for species conservation, freeze-dried mouse cells produce healthy pups
Two years after scientists at the Roslin Institute in Scotland delivered Dolly the sheep, the first mammal to have been successfully cloned from an adult cell, researchers at the University of Hawaii reported another groundbreaking first for the world of reproductive technology: They had cloned mice, not from fresh, fully functioning cells, but from freeze-dried sperm.
Nearly 25 years later, some of those same researchers have figured out how to combine the techniques, an advance that could be a powerful boon to biodiversity banking and species conservation efforts.
