There are two major topics of this website:
philatelic representation of Paleontology and Paleoanthropology.

Paleontology is the scientific study of life of the geologic past that involves the analysis of plant and animal fossils, including those of microscopic size, and their traces preserved in rocks. Encyclopedia Britannica	Paleoanthropology, interdisciplinary branch of anthropology concerned with the origins and development of early humans. Encyclopedia Britannica