What happens to ecosystems when you restore iconic top predators? It's more complicated ...

Across North America, mountain lions, bears and gray wolves have made a remarkable comeback over the last 50 years. Once ...
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The Largest Wolf in History was Twice the Size of a Dire Wolf

Epicyon haydeni, or Hayden’s bone-crushing dog, roamed North America between 12 and 6 million years ago during the middle to late Miocene epoch. Its fossils have been discovered in at least 12 ...