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Could a Robin and a Bluebird Have Babies? And More Questions From Our Readers
Smithsonian Magazine· 4 days agoAlthough closely related species can have offspring, they typically don’t. Robins and bluebirds may be able to hybridize (there are no documented cases), but they have different plumages, songs ...
A Tipping Point in Antarctica Could Trigger Unstoppable Ice Melting
Popular Mechanics· 6 days agoFor years, the Greenland and Antarctic ice sheets have been melting faster than predicted by the...
