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Scientists have identified a hidden feedback loop that may explain how Earth has regulated its climate for tens of millions of years. As sea levels rose and fell, they changed how much phosphate reached the open ocean, affecting marine life and the . ...

An unusual leopard gecko that naturally develops aggressive tumors may become an important new model for cancer research. Scientists found its tumors share key genetic changes with human cancers, offering a rare opportunity to study the disease as it ...

NASA's PACE satellite captured the Black Sea glowing turquoise during its annual phytoplankton bloom. The vivid color comes from massive numbers of coccolithophores, microscopic organisms whose reflective shells brighten the water enough to be seen . ...

A 1,600-year-old mummy discovered in Egypt has revealed something archaeologists had never seen before: a fragment of Homer's Iliad used during embalming. The papyrus was identified as part of the famous "Catalogue of Ships," one of the best-known .. ...

Humans are often described as the planet's ultimate "super-predator," but wild animals do not fear every human the same way. After analyzing three decades of research, scientists found that animals become much more alert and spend less time feeding . ...

A deadly fungus has wiped out amphibian populations around the globe, yet some mysteriously recover. Researchers discovered that survivors develop powerful immune defenses while they are still tadpoles, giving them a head start before the fungus can ...

Chimpanzees showed a remarkable attraction to crystals, choosing them over ordinary stones and studying them with intense curiosity. The results suggest that the same unusual features may have fascinated early humans long before crystals had any ...

Nearly 800,000 years ago, early humans living beside a lake in what is now Israel may have chosen the location for one surprisingly practical reason: firewood. Researchers discovered that these ancient people regularly gathered driftwood washed up .. ...

A major review found that people who consumed the most chili peppers had a substantially higher risk of esophageal cancer, though the evidence was less clear for stomach and colorectal cancers. Researchers emphasize that the findings show an ...

The world's longest-running soil warming experiment has revealed an unexpected climate concern. After nearly four decades, researchers found that warming can cause microbes to break down stable soil carbon that scientists once believed was largely .. ...