A Biologist Explains How Prehistoric ‘Terror Birds’ Earned Their Name

Long before big cats, terror birds reigned as apex predators. Here’s how these flightless birds hunted, and why they went ...
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12 Stunning Woodpecker Varieties You're Likely To See In U.S. Gardens

From the Pileated to the Acorn woodpecker, the Gila to the Williamson's Sapsucker, you can spot these stunning woodpeckers in ...