Hyperactive magnetic field may have led to one of Earth’s major extinctions | Science | AAAS

Rapid reversals of Earth’s magnetic field 550 million years ago destroyed a large part of the ozone layer and let in a flood of ultraviolet radiation, devastating the unusual creatures of the so-called Ediacaran Period and triggering an evolutionary flight from light that led to the Cambrian explosion of animal groups. That’s the conclusion of a new study, which proposes a connection between hyperactive field reversals and this crucial moment in the evolution of life.

Source: Hyperactive magnetic field may have led to one of Earth’s major extinctions | Science | AAAS

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