The Mother of Mass Extinctions: How Life on Earth Nearly Ended 250 Million Years Ago

[@sieracki001]

Lecture starts at 7:20

[@Aluminata]

To be fair there are about 4600 species of cockroaches and only 4 are considered pests.
Those 4, at a guess, probably represent 90% of the species abundance.

[@tamvas3712]

thank you for this excellent and interesting talk!

[@wkboonec]

Once upon a time, 252.4 miilion years ago, ...

[@crowesarethebest]

Very interesting presentation.