XML organizes data and contains instructions for understanding that organization. XML can present data so it can be read by a person or by a computer. Let's admit right from the start that everything ...

Emmet: Greetings, Emmet here! Evolution is the way that living things have developed and changed over time. Just watch this! All animals within a species are slightly different from each other, but ...

Narrator: What healthy living is really all about is making sure that you’re in good shape. Supposing when you needed exercise, you just sent your left leg to go off for a run. It wouldn’t keep you ...

This iceberg in Scoresby Sound, East Greenland, is one of many frozen sights in the country. Photograph by Frans Lanting, Nat Geo Image Collection Craters at Lake Myvatn in Iceland are among the ...