Learn more about why the human population seems to be in decline and what that could mean for the future.

Learn why some icy objects inhabiting a remote region beyond Neptune look like snowmen.

Learn how a simple blood test measuring a key Alzheimer’s protein may help estimate when symptoms are likely to begin, ...

Learn more about the impact ultramarathon running has on red blood cells and how it may do more harm than good for the body.

Learn how a newly discovered 95-million-year-old Spinosaurus mirabilis used interlocking teeth to catch fish in an ancient ...