Australian officials signed an agreement last night allowing UC Riverside to continue its pioneering research on a government-owned goldmine for unusual fossils. Nilpena Station is a city-sized plot of land in the Australian Outback. It harbors the richest collection on Earth of animal species around 550 million years old. Some...

It’s hidden from sight, but there’s an epic battle of the sexes raging in the leafcutter ant species Atta colombica. Competing males deliver sperm in a fluid that’s toxic to rivals’ sperm, while females quash their efforts in order to ensure their own reproductive success. For the first time, a...

Study pinpoints concerns about race and immigration — not economic ones — as likely determinants of vote switching