Millions of years ago, apex predators in the Phorusrhacidae family lived up to their more common name—terror birds. The mostly flightless, meat-eating dinosaur descendents were the size of dogs at ...
In the vast plains of ancient South America, millions of years ago, a menacing shadow loomed over the grasslands. It wasn’t a dinosaur or a mammalian predator, but a colossal bird that dominated the ...
Prehistoric Earth was filled with all kinds of impressively scary animals. But one category of avians, an extinct clade called Phorusrhacidae, was so fierce that they ...
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