News
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GeneticsAncient Siberian bones clarify Native American origins
Some New World ancestors came from western Eurasia, not East Asia.
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Planetary ScienceAncient Martian meteorite preserves chunks of planet’s early crust
Rock could reveal what Mars was like 4.4 billion years ago.
By Andrew Grant -
AnimalsComb jelly immune system can spot old enemies
Animal at base of family tree could help researchers understand the evolution of immunity.
By Susan Milius -
EcosystemsVirus-blocking insects taking over Vietnamese island
Field trial tests mosquitoes that may stop the spread of dengue infection.
By Beth Mole -
AnthropologyHuman ancestors threw stone-tipped spears at prey
African discoveries show that hunting weapons thrown from a distance appeared by 279,000 years ago.