The return of sharks to Ashmore Reef after marine protection was enforced in 2008 shows how top predators influence not just what they eat, but how other species behave. New research reveals that ...

More than 350,000 chemicals are used worldwide, and many find their way into the ocean through plastic pollution. As plastics ...

Evaluation of the main hypotheses proposed for the causes of decline and failure to recover of the western Steller sea lion population depends on understanding how food web linkages affect sea lions.

New research from the University of Minnesota upends long-held understanding about how wolves, bears and cougars—three of Yellowstone National Park's most iconic carnivores—compete for prey. For years ...

A new study shows how the disappearance of an apex predator, the great white shark, from South Africa’s False Bay triggered changes throughout the food chain. With the loss of the top predator in the ...

WASHINGTON — It may have been suicidal for a predator to go after a healthy adult Brachiosaurus, a behemoth weighing perhaps 60 tons that was a member of the long-necked group of dinosaurs called ...

A new study has revealed that "hug of death" megaraptorids and previously unknown carcharodontosaurs shared Australia's unique Antarctic dinosaur ecosystem during the Cretaceous.

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 ...