Paleontology

The arctic circle maps the northern-most area of the earth, and marks the extremities of the polar day and the polar night. learn more about the arctic circle, and the dangers of its exploration.

The small intestines are an essential part of the human digestive system and are used to absorb the nutrients found in the already digested food - it is said that around 95% of absorption takes place along this six-metre tract. this article will discuss the structure and function of the small intestines in much greater detail.