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Giant kangaroos that lived during the Ice Age may not have been as slow and grounded as once believed. A new study finds their leg bones and tendons were likely strong enough to support hopping, despite their massive size. Rather than traveling this ...

Chemotherapy's gut damage turns out to have a surprising upside. By changing nutrient availability in the intestine, it alters gut bacteria and increases levels of a microbial molecule that travels to the bone marrow. This signal reshapes immune cell ...

Alzheimer's may be driven far more by genetics than previously thought, with one gene playing an outsized role. Researchers found that up to nine in ten cases could be linked to the APOE gene -- even including a common version once considered neutral ...

In Guatemala's Western Highlands, researchers found that the drinking water people trust most may actually be the riskiest. Bottled water from refillable jugs--seen as the safest choice--was frequently contaminated with harmful bacteria, while ...

New research suggests that auditory hallucinations in schizophrenia may come from a brain glitch that confuses inner thoughts for external voices. Normally, the brain predicts the sound of its own inner speech and tones down its response. But in ...

A rare fossil discovery in Ethiopia has pushed the known range of Paranthropus hundreds of miles farther north than ever before. The 2.6-million-year-old jaw suggests this ancient relative of humans was surprisingly adaptable, not a narrow specialist ...

Rare rocks buried deep in central Australia have revealed how a valuable niobium deposit formed during the breakup of an ancient supercontinent. More than 800 million years ago, tectonic rifting opened pathways that allowed metal-rich magma to rise . ...

Europa's subsurface ocean might be getting fed after all. Scientists found that salty, nutrient-rich surface ice can become heavy enough to break free and sink through Europa's icy shell, delivering essential ingredients to the ocean below. The ...

Chemists at UCLA are showing that some of organic chemistry's most famous "rules" aren't as unbreakable as once thought. By creating bizarre, cage-shaped molecules with warped double bonds--structures long considered impossible--the team is opening . ...

A new study suggests humans belong in an elite "league of monogamy," ranking closer to beavers and meerkats than to chimpanzees. By comparing full and half siblings across species and human cultures, researchers found that long-term pair bonding is . ...