Coming back from the brink

The race to save the northern white rhino, a species so close to extinction that there are only two known left in the world, has taken a sci-fi movie-level turn. The team at the BioRescue project has successfully impregnated a southern white rhino via in vitro fertilization, creating a possible path for restoring the species. The sperm was collected from a southern white rhinoceros named Athos, who lives at Zoo Salzburg in Austria. The egg cells were retrieved from Elenore, a southern white rhinoceros living in the Pairi Daiza Zoo...