IQ tests are excellent instruments of measuring intelligence. Most of these tests come as a picture, puzzle, riddle, ...

IQ tests are a great way to measure an individual's intelligence. In these tests, a problem in the form of a picture, puzzle, ...

A little penguin colony in Australia struggles during years with high penguin divorce rates, but the divorcees could have ...

The ice is melting because of global warming. When humans burn fossil fuels like oil and coal, a bunch of greenhouse gases go ...

Discover the secrets behind polar bears in these ten facts... Polar bears are fascinating creatures of the Arctic, perfectly adapted to their icy world. With their powerful presence and unique ...