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Mar. 26, 2025 — A new species of fossil is 444 million years-old with soft insides perfectly preserved. Research 'ultramarathon' saw palaeontologist puzzled by bizarre fossil for 25 ...

The Best of Denver is a year-round obsession. No sooner do we finish one edition than we're on to the next, filling our phones and pockets with notes on new finds as well as old-school favorites ...

Cardiac macrophages in newborn mice promoted heart cell proliferation after injury, offering a potential approach to regenerate cardiac tissue in adults.