From mammals to mollusks, animals living among humans lose their antipredator behaviors.

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The ancestors of today’s dogs already exhibited some playfulness, which became a key trait during domestication.

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A stretch of Neandertal DNA has been associated with some cases of severe COVID-19, but it’s unclear how much of a risk it poses. Christopher Intagliata reports. 

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New Nobel laureate in chemistry Jennifer Doudna talks about various applications of the gene-editing tool CRISPR.

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Blue whales off California’s coast sing at night—until it’s time to start migrating, and they switch to daytime song.

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Charles Rice, who today shared the Nobel Prize in Physiology or Medicine for the discovery of the hepatitis C virus, talked about how rapidly research now occurs, compared with his early work.

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Researchers determined that Greenland is on track to lose more ice this century than during any of the previous 120 centuries. Christopher Intagliata reports.

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The disappearance of their predators in a disturbed ecosystem has turned Atlantic forest sloths from night creatures to day adventurers.

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Researchers seeking evidence for cancer in dinosaurs found it in a collection of bones at a paleontology museum in Alberta.

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Fork-tailed flycatchers make a fluttering sound with their wings—but separate subspecies have different “dialects” of fluttering. Christopher Intagliata reports.

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