babies

“World First”: Watch Polar Bear Cubs Open Eyes

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, ...

Poison Frogs Make Their Babies Toxic, Too

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, ...