Spreading Viruses
Viruses spread from room to room much more quickly than you might think.
Saving degraded coral reefs may be difficult, because juvenile corals and fish won't return to them.
Engineers are creating highly efficient solar cells from recycled lead-acid car batteries.
Marine mammals brought tuberculosis to South Americans from Africa more than 1000 years ago.
Scientists demonstrate that “biosurgery” using bacteria can shrink tumors in dogs and humans.
Naturally occurring soil bacteria can make fruit ripen more slowly – potentially saving a lot of food and money.