LifePenguins' sense of taste hobbled by their icy habitat Would you serve penguins lemon sole? It might go down well: genetic screening shows they haven't the chemical tools for anything but salty and sour flavours ¿ìè¶ÌÊÓÆµ
EarthLab-bound bacteria could lead to 'safer' GM organisms Genetically modified E. coli have been created to survive only if they have access to unnatural amino acids, dying if they escape into the wild ¿ìè¶ÌÊÓÆµ