RYAN F. MANDELBAUM: ‘Researchers watched puffins use sticks to scratch their backs and chests — a behavior previously unknown to scientists. There’s already mounting evidence that certain birds possess advanced intelligence. New Caledonian crows fashion advanced tools, cockatoos dance to music, and chickadees can remember where they hid thousands of cached food items. But there … Continue reading STUDY: Puffins Seen Using Tools for the First Time