The Earth has diverse climates, categorized into five main zones: i.e., Tropical, Dry, Temperate, Continental, and Polar.

If you haven't been to Mexico City, you might guess that it has a tropical climate. But actually, the Mexican capital sits at an elevation of over 7,000 feet. That's higher than even Denver. At that ...

Primates - the group of animals that includes monkeys, apes and humans - first evolved in cold, seasonal climates around 66 million years ago, not in the warm tropical forests scientists previously ...