The genomes that exist today are connected by threads of descent to the genomes of their parents and grandparents and so on, back to the beginning of life on Earth.The Tree of Life, shows how every person is relatively closely related to every other person—sharing common human ancestors within the last hundred thousand years, and sharing ancestors with every dog and whale within the last two hundred million years, and every daisy and redwood tree within the last two billion years.
Source:
Philosopher Daniel Dennett’s Book Intuition Pumps
