Returning pumas in Patagonia are killing thousands of Magellanic penguins. Scientists are studying how this unexpected predator threat could reshape coastal ecosystems and conservation strategies.

The audio version of this article is generated by AI-based technology. Mispronunciations can occur. We are working with our partners to continually review and improve the results. The scent of a ...

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 ...

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 ...

A warming planet means a warming ocean. The seas soak up over 90 percent of the heat humanity traps on Earth. Last year, ocean warming reached a record high. "Unfortunately, I think we're going to ...

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 ...