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AstronomyA protogalaxy in the Milky Way may be our galaxy’s original nucleus
Millions of ancient stars spanning about 18,000 light-years at the Milky Way’s heart are the kernel around which the galaxy grew, researchers say.
By Ken Croswell -
AnimalsDrumming woodpeckers use similar brain regions as songbirds
Woodpeckers drum on trees and other objects using brain regions similar to those that songbirds use to sing, suggesting a common evolutionary origin for the complex behaviors.
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AnthropologyFossil finds put gibbons in Asia as early as 8 million years ago
Specimens from China raise questions about the evolutionary ID of an even older ape tooth from India.