Permian-Triassic extinction 96% marine species

The Permian extinction wiped out about 96% of marine species

About 96% Of Marine Species

The Permian–Triassic mass extinction eliminated about 96% of marine species. It was even more severe than the much better-known extinction that later killed the non-bird dinosaurs.

Pain from an organ can be felt somewhere else in the body

Pain from internal organs can be hard to locate and may be felt in a different place, often closer to the skin. Internal organs are very sensitive to stretching, poor blood flow, and inflammation, but can be surprisingly insensitive to cutting or burning.

A little mercury can badly damage aluminum

Mercury can combine with aluminum and destroy the thin protective layer on its surface. Once that protection is gone, the aluminum can corrode quickly. This is why mercury is generally banned on aircraft, where aluminum parts could be put at risk.

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Permian-Triassic extinction 96% marine species

The Permian extinction wiped out about 96% of marine species

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