These rare bones are helping to fill in the picture of a period deep in our past that remains mysterious in many ways on.natgeo.com/3q0WXrh

More than 12 million Africans were forced from their homes and sold into slavery. These destinations tell their stories on.natgeo.com/3uLZGZx

We’ve long known that sea ice is an important platform for polar bears to hunt and raise young, but it turns out that the ice itself also carries a valuable energy source #PolarBearDay on.natgeo.com/3r2TZ6W

Here’s how distributed networks of batteries could help both the homeowner hoping to keep the lights on and the grid at large on.natgeo.com/3r15cot

A polar bear swims at the water's surface in this icy scene captured by photographer Andy Mann #PolarBearDay pic.twitter.com/zeFSGD0rz6

Advances in treating COVID-19 have come piecemeal, but recent clinical trials have pointed to several additional drugs that could join the #COVID19 tool kit on.natgeo.com/3q4agY2