A new study of carbon-based molecules in a Martian rock offers new hints about the possibility that the red planet once ...

The cataclysmic end-Permian mass extinction and extreme global warming prompted the emergence of modern marine ecosystems at the beginning of the Age of Dinosaurs (or Mesozoic era), some 252 million y ...

Palaeolithic objects dating back between 34,000 and 45,000 years bear mysterious sign sequences – often repeated lines, notches, dots and crosses. Many of these artefacts were discovered in cave ...

Plants have an immune system, like people, and when it is triggered by threats like disease or pests, a plant’s defenses are activated. But there’s a downside to this protective mechanism: ...

A new study of carbon-based molecules in a Martian rock offers new hints about the possibility that the red planet once hosted life. The researchers considered a range of possible ...

With more than a thousand eggs to protect, a boxer crab mother uses living anemones for defense — and even clones them when one is lost.