Genetics
DNA tells tale of how cats conquered the world
Ancient DNA study suggests that domesticated cats spread across the ancient world in two waves.
HS-LS4-1
Communicate scientific information that common ancestry and biological evolution are supported by multiple lines of empirical evidence.
More Stories in HS-LS4-1
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AnimalsHow the house mouse found its home
Once people started settling down 15,000 years ago, a mouse species followed them indoors. The animals didn’t need people to be farming and storing food.
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FossilsFossils offer new candidate for earliest life
Rock unearthed in Canada appears to hold fossils from seafloor microbes that would have lived around 4 billion years ago, when Earth was very young.
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ArchaeologyFossils point to Neandertal diets — and medicine use
Whether Neandertals were largely meat-eaters or vegans depended on their environment, fossils now suggest. Their teeth also indicate they used natural medicines.
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FossilsDinosaur tail preserved in amber — feathers and all
Scientists have found the tail of a dinosaur trapped in amber. It includes both feathers and identifiable bits of bone.
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FossilsSpeckled dino spurs debate about ancient animals’ colors
Structures found in fossil dinosaur skin may give clues to the creatures’ colors and how they lived. But not all scientists agree on how to interpret what they see.
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FossilsDino brain found ‘pickled’ in boggy swamp
Scientists claim to have identified the first fossil brain tissue from a dinosaur.
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GeneticsHuman DNA carries hints of unknown extinct ancestor
A new study suggests people today carry genetic traces of now-extinct species unknown to science.