What makes a successful invasion? What keeps invaders out? Are some geographic locations more vulnerable to invasion than others? Smithsonian marine biologists and colleagues at Temple University ...

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 ...

A hotter ocean is a hungrier ocean—at least as far as fish predators are concerned. In a new field study published online June 9 in Science, Smithsonian scientists discovered predator impacts in the ...

Carnivores like leopards, lions and hyenas have been killing livestock for centuries, causing financial losses to farmers. In many parts of the world, farmers respond by killing these predators. This ...

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 ...

Marine biologists tested predictions about biological invasions, first in Panama and then in an experiment of unprecedented geographic scale. Night and day, oil tankers, yachts and cargo ships stacked ...