They grow a new pair of legs at each stage. Angel Fitor In every drop of water is a hidden world. Scuba divers can’t see it through their masks; neither can snorkelers swimming among the coral ...

You could repeat this experiment in the kitchen sink, or a bathtub if you have one. The key point is that the water level ...

When threatened, they can drop from a tree into the water and sprint, upright, about 5 feet per second across the surface. To accomplish this, they have long toes on their rear feet with fringes ...