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30,000-year-old giant virus comes back to life in French lab

Last Updated: Tuesday, March 04, 2014, 19:41

A large ancient virus that lied dormant in the Siberian permafrost for at least 30,000 years has sprung back to life after French scientists revived it in the laboratory.

Plants use hormones to choose growth over pathogen defence

Last Updated: Thursday, January 02, 2014, 16:36

Scientists have discovered how plants use steroid hormones to choose growth over defending themselves against pathogens.