Warning: If you can’t handle extreme cuteness, you may want to look away. Twin baby polar bears at the Hellabrunn Zoo in Munich, Germany, have opened their eyes for the first time. The twin cubs, just five weeks old, ...
By Karl Gruber Strawberry poison frogs (Oophaga pumilio) of Costa Rica give their newborn tadpoles a built-in weapon against predators: alkaloids. Various animals and plants use alkaloids—naturally occurring, bitter-tasting chemical compounds—as a first line of defense. For instance, ...
Every week, embark with host Boyd Matson on an exploration of the latest discoveries and interviews with some of the most fascinating people on the planet, on National Geographic Weekend. Please check listings near you to find the best ...
Every week, embark with host Boyd Matson on an exploration of the latest discoveries and interviews with some of the most fascinating people on the planet, on National Geographic Weekend. Please check listings near you to find the best ...