Browse Items (2 total)

Ernst Haeckel was an important 19th-century biologist, especially in describing the relations and connections between different organisms. He was, in fact, inventor of the term ecology--the study of nature's "household." For his 1879 book The…

A tree depicting the relationship between sequenced genomes (as of 2006). The center represents the last universal ancestor of all life on earth. Each color represents one of the three domains of life: pink represents eukaryota (animals, plants, and…