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Archaeology Oct 5, 2026

Ancient DNA evidence narrows down when people first reached the Americas

One of the unresolved mysteries about the history of the Americas is when the first people arrived. Despite extensive debate centering on genetic, archaeological and environmental evidence, there is still no consensus or ...

Paleontology & Fossils Oct 5, 2026

New saber-toothed predator from Argentina suggests its lineage survived longer than believed

In 2014, members of a local museum found fragments of an ancient fossil dating to the end of the Pliocene or early Pleistocene epoch in a seaside cliff on the Argentine pampas. They belonged to a large predator, but the only ...

Evolution Oct 5, 2026

Sharks' inner ears reveal surprising diversity that may reflect evolution more than environment

A new study of shark anatomy suggests the shape of their inner ears is far more variable than expected, and this variation could have more to do with their evolutionary history than where they live or what they eat.

Social Sciences Oct 5, 2026

Whether it's banning books or preventing artists from touring, silencing often backfires

If the goal was to silence rapper Macklemore by preventing him from touring with singer Ed Sheeran, it clearly backfired. Macklemore delivered a monolog in support of Palestinians in Gaza and the West Bank and performed his ...

Earth Sciences Oct 5, 2026

Why Great Plains rivers depend on wetlands as well as climate

When a prairie river carries more water in one year than another, the obvious place to look for an explanation is the sky. A year with more snow and rain should have more water in rivers. That was also how I initially thought ...

Ecology Oct 5, 2026

Pollen study reveals the hidden history of grasses

Scientists used machine learning and super-resolution microscopy to overcome a challenge that has stymied research into the natural history of grasses for decades. Their method allowed them to detect subtle differences among ...

Astronomy Oct 5, 2026

Tiny ancient black holes may live in a five-dimensional world

Primordial black holes (PBHs) don't exist as far as we know. But if they did, these hypothetical objects would have formed in the early universe rather than from dying stars, and they may even make up dark matter. That's ...

Astronomy Oct 5, 2026

X-rays and AI reveal how spacecraft heat shields burn in real time

Heat shields are one of the most important parts of any spacecraft that intends to enter an atmosphere. And the material they are made of is critical. Improving them has been a challenge, though, as researchers typically ...

Earth Sciences Oct 5, 2026

'Flying rivers' above South America form drainage networks resembling those on land

Water does not flow only through rivers on the ground. Vast quantities of water also move through the atmosphere, carried by winds from oceans and land before eventually falling as precipitation hundreds or even thousands ...

Plants & Animals Oct 5, 2026

Tortoises win support, hyenas face doubts in survey on adding exotic wildlife to UK parks

Zebras grazing in a UK park might sound like the stuff of a high-budget Hollywood blockbuster, but new research suggests it could one day be vital in the fight against climate change, and that the British public might not ...

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