I am hanging out at the airport, having just missed my flight to Raleigh, but free wireless makes it just an extra office. I’ve just read a few complaints on my post about visualizing the tree of life. Some commenters are not pleased that the tree I illustrated the post with does a grave disservice to the overwhelming diversity of the bacterial world. It is certainly true that bacteria (and archaea) are staggeringly diverse. In a spoonful of soil there may be 10,000 species of microbes. By comparison, there are only about 5,000 mammal species. A lot of the diversity in microbes is ancient, since they’ve been around a lot longer than mammals, or even animals.
Continue reading “Trees of Life: Choose Your Diversity” →