🐀 WHAT SURVIVED THE ASTEROID?
PAGE 1 OF 5 — EARTH'S WORST DAY
66 MA
WHO MADE IT THROUGH?
Some creatures made it through Earth's worst day, but most giants did not. When the asteroid darkened the sky, size became a liability. A multi-tonne sauropod needed tonnes of plants every week; when forests died, it starved within weeks. A Tyrannosaurus needed vast territories of prey; when food chains collapsed, it had nowhere to go. Small, flexible animals with varied diets, shelter, and fast breeding had a far better chance.
📏 THE SIZE RULE
📏 Under ~25 kg body mass = better survival odds
🦕 Giants needed constant food supply
🌑 Impact winter lasted months to years
🦕 Giants needed constant food supply
🌑 Impact winter lasted months to years
"Small, tough, and flexible beat huge."
LIVE!
GONE
🦖 Tyrannosaurs and sauropods gone
🦈 Marine reptiles mostly lost
🌋 Ash buried entire ecosystems
🦈 Marine reptiles mostly lost
🌋 Ash buried entire ecosystems
HERE
🐦 Birds = feathered dinosaurs
🐊 Crocodilians in rivers
🐢 Turtles and lizards endured
🐊 Crocodilians in rivers
🐢 Turtles and lizards endured