A Colorado State University experiment spanning more than two decades has found that removal of apex predators from an ecosystem can create lasting changes that are not reversed after they return—at ...

DENVER (KDVR) — Colorado State University researchers spent over 20 years observing food webs and ecosystems in Yellowstone and concluded removing apex predators damages the ecosystem in a lasting way ...

By eating what no one else can, zebras expand the land’s capacity for life, making them foundational drivers of ecosystem ...

In Yellowstone National Park — where gray wolves were reintroduced starting in 1995 — researchers have gone back and forth on whether the restoration of wolves has impacted the ecosystem. The idea is ...