Steve Brusatte

“Trillions of living beings died in the ensuing decades as 75% of species — not animals, species — went extinct.”

“one Dromornis, a ten-foot-tall behemoth whose 'super-thickened hind limb bones imply maximum body weights in the range of 1,300–1,600 pounds.'”

“a goldcrest, which weighs one-sixth of one ounce, 'has 164 million neurons, double that of a two-hundred-pound … Nile crocodile.'”

“On average, a bird has 21 times more neurons than a similarly sized reptile and two times more neurons than a similarly sized mammal.”