Unraveling threads of bizarre hagfish's explosive slime

Hundreds of meters deep in the dark of the ocean, a shark glides toward what seems like a meal. It's kind of ugly, eel-like and not particularly meaty, but still probably food. So the shark strikes.

Tackling greenhouse gases

The images are ubiquitous: A coastal town decimated by another powerful hurricane, satellite images showing shrinking polar ice caps, a school of dead fish floating on the surface of warming waters, swaths of land burnt by ...

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