@natgeo
National GeographicPressed close against its mother’s chest, this polar bear cub is sustained by her milk, which is the only form of nourishment it needs for up to two and a half years. But even in this moment captured by Martin Greguš Jr. @mywildlive, the mother stays alert—through the long ice-free season, she must balance feeding, resting, and protecting her young while conserving energy as she waits for the sea ice to return.
On the profile · Feb 27, 2026