Do adult periodical cicadas actually feed on anything?

Every so often, cicadas emerge above ground and blanket the Earth with their exoskeletons while emitting a high-pitched chirp from sunrise to sunset. The periodical cicadas in the genus Magicicada come every 13 or 17 years, ...

Plant 'smells' insect foe, initiates defense

It cannot run away from the fly that does it so much damage, but tall goldenrod can protect itself by first "smelling" its attacker and then initiating its defenses, according to an international team of researchers.

Building blocks of life came from deep Earth

The rise of the first complex life depended on vital metals brought up to the Earth's surface from far below in vast granite deposits, a new study argues.

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