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Health & MedicineTasmanian devils evolve resistance to contagious cancer
Tasmanian devils are evolving resistance to a deadly contagious cancer.
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AnthropologyFossil autopsy claims Lucy fell from tree
A contested study suggests a famous fossil ancestor plunged to her death.
By Bruce Bower -
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PhysicsBacteria-sized molecules created in lab
Cesium atoms with high-energy electrons pair up to form giant molecules.
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Planetary ScienceSpacecraft reveal diversity in solar system’s landscapes
The latest generation of interplanetary spacecraft have revealed diverse landscapes on planets, asteroids and comets throughout the solar system.