permian
Asteroids Crash Into Earth Over Twice as Often as 290 Million Years Ago
Scientists find that a surge in Earth impacts began during the Permian period, possibly because of disruptions in the asteroid belt.
'The Great Dying' May Not Have Been So Great
New findings suggest that the formerly agreed-upon rates of terrestrial extinctions may be inaccurate.
Video Proof That Spiders Have Been Creepy for at Least 410 Million Years
Trigonotarbids make modern spiders seem teddy bear-level cuddly. See for yourself.
'Cosmos' Was Too Soft on Our Current Mass Extinction Event
Neil deGrasse Tyson said the sixth mass extinction event has no name. It does, and everyone should know it.
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