Cretaceous Memes

Talk about an overachiever! The Chicxulub impactor didn't just wipe out non-avian dinosaurs—it literally holds the cosmic record for most efficient bird extinction event. That 10-15km chunk of space rock eliminated approximately 75% of all species on Earth in one catastrophic afternoon 66 million years ago. Birds are technically dinosaurs, so this celestial "stone" managed to kill billions of prehistoric feathered creatures in one apocalyptic swoop. The ultimate dark twist on the "kill two birds with one stone" idiom, except replace "two" with "countless billions." Nature's efficiency can be absolutely terrifying!