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Scientists find 10 new defense systems used by bacteria

Scientists find 10 new defense systems used by bacteria

Author: Laurel Hamers / Source: Science News VIRAL ATTACK Viruses called phages (shown landing on the surface of a cell in this transmission electron micrograph) can infect and kill bacteria. Scientists have just found a slew of new defense mechanisms that...

Changing toothpastes? Change your toothbrush

Changing toothpastes? Change your toothbrush

Author: Alison Pearce Stevens / Source: Science News for Students The bristles of your toothbrush can absorb triclosan from toothpaste, a new study shows. Later, that chemical can come out again and expose your mouth. Some popular toothpastes contain an...

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