Argentine ants have been found on six continents, from South America to Japan. Researchers are studying their impact.

However, researchers in Panama have observed two species of orb-weaver spiders that have made their homes on acacia plants that are defended by ant colonies. The interaction forms a three-way ...

Ecosystems are entirely interconnected — if one element is changed, it can cause ripple effects through the entire system. For evidence, look no further than Kenya, where the introduction of a ...