Yellowstone’s wolf reintroduction has often been described as one of conservation’s clearest trophic-cascade success stories.

If that story has been oversimplified, the implications extend well beyond one national park.

Biology teachers around the world commonly introduce their students to the concept of 'trophic cascades' with an example from ...

Detailed weight data on wolves near Yellowstone reveals that Wyoming's wolves seem to weigh much more than gray wolves in other parts of the Lower 48. Here's why ...

One of the most celebrated claims about Yellowstone’s wolves is facing a major challenge. Scientists say the study behind the famous trophic cascade story relied on flawed methods that overstated the ...

Few animals symbolize wild interconnectedness quite like wolves, whose return helped reveal just how tightly ecosystems are woven together.

Thirty years ago, park rangers reintroduced grey wolves into Yellowstone National Park. They wanted to restore the ecosystem and get the elk... What is the legacy of Yellowstone wolves 30 years after ...

A virus outbreak hit Yellowstone wolf pups hard in 2025.

When Yellowstone National Park’s aching cold and deep snow claims the lives of winter-weakened bison, predators like wolves are one of the beneficiaries. “Wolves know the bison are going to die so ...

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Wolf 8 was the smallest of all the male wolves released into Yellowstone and probably was the least likely to become a successful alpha male. When he was a yearling, equivalent to a teenager in human ...