News
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AnimalsSeabirds use preening to decide how to divvy up parenting duties
Seabirds in poor condition may communicate this information to their partner by delaying or withholding preening.
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AnthropologyHomo naledi may have lived at around same time as early humans
South African species Homo naledi is much younger than previously thought.
By Bruce Bower -
Planetary ScienceOxygen on comet 67P might not be ancient after all
Molecular oxygen detected around comet 67P may not be a relic of the solar system’s birth. Instead, it may be generated by interactions of water, the solar wind and the comet’s surface.
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ArchaeologyTwisted textile cords may contain clues to Inca messages
A writing system from the 1700s may illuminate even older knotty Inca messages.