A molecular on/off switch for CRISPR

Picture bacteria and viruses locked in an arms race. For many bacteria, one line of defense against viral infection is a sophisticated RNA-guided "immune system" called CRISPR-Cas. At the center of this system is a surveillance ...

No sci-fi joke: 'killer robots' strike fear into tech leaders

It sounds like a science-fiction nightmare. But "killer robots" have the likes of British scientist Stephen Hawking and Apple co-founder Steve Wozniak fretting, and warning they could fuel ethnic cleansing and an arms race.

Elaborate egg shells help prevent forgery

There's a high-stakes arms race being waged with colors and patterns in the scrublands of southern Zambia. It's a battle that's probably being fought everywhere there are birds practicing what is known as "brood parasitism"—laying ...

Exploring a microbial arms race

A rapid evolutionary "arms race" between bacteria and the killer viruses they contain has been observed by a UNSW-led team of scientists in a sophisticated genetic study of the micro-organisms.

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