Brazil court blocks move to repeal mangrove protections

A Brazilian court blocked President Jair Bolsonaro's government Tuesday from repealing regulations protecting mangroves and other fragile coastal ecosystems, after an outcry from environmentalists.

A study analyzes the unexpected behavior of hydrogen flames

Hydrogen flames can propagate even with very little fuel, within surprisingly narrow gaps and can extend breaking up into fractal patterns. That is the unexpected physical behavior of this gas when it burns, which has been ...

Bumble bee workers sleep less while caring for young

All animals, including insects, need their sleep. Or do they? That's the question researchers reporting October 3 in the journal Current Biology are exploring in sleep studies of a surprising group of subjects: brood-tending ...

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