The fossil record seems to indicate that the diversity of marine creatures increased and decreased over hundreds of millions of years in step with predator-prey encounters. For decades, there has been ...

Caspian terns feeding on young fish have a significant impact on runs of steelhead in the Columbia River, new research suggests. Caspian terns feeding on young fish have a significant impact on runs ...

Almost all animals eat living things, so in a sense most are predators. We normally restrict the term, though, to cases in which the animal chases and kills its prey. Nevertheless, the models we will ...

Only two wolves likely remain on Isle Royale National Park. Additionally, moose have increased, and the high number of calves and low predation rates suggest that the population will continue to boom.

Researchers used a wide-scale acoustic mapping technique to track capelin, left, and cod populations. In the largest predation event ever recorded, researchers observed capelin shoaling off the coast ...

This is a preview. Log in through your library . Abstract Before an animal can evaluate the benefits and costs associated with a particular behavior, it must first assess them. Since perfect ...