Encyclopedia > Common descent

Article Content

Common descent

Common descent is the biological theory that all life on Earth shares a common ancestor.

The theory of common descent was proposed by Charles Darwin in 1859 in his book The Origin of Species. More than a century later, discoveries in genetics confirmed this theory. It is now taken for granted by biologists.

All Wikipedia text is available under the terms of the GNU Free Documentation License

Search Encyclopedia

Search over one million articles, find something about almost anything!

Featured Article

Urethra

... the urethra in the male, where the opening is not quite where it should be (it occurs lower than normal in hypospadias). A chordee[?] is when the urethra develops between ...