Sean Carroll
Sean Carroll
bursts deep harder origins
As you go into deep time, these bursts of evolutionary origins become harder to resolve.
backing closer drew eddie fired partner pulled slightly weapon
Before I fired my weapon, Eddie McMellon, who (was) slightly closer than I was, started backing out and saying, 'What are you doing? What are you doing?' I just thought he pulled and drew a weapon on my partner -- I fired my weapon,
branches pattern related tree
In general, we'd like to know who's related to whom, and the pattern of the branches of the tree of life.
branches bush close instead sprout
But instead of a tree, we got a bush where many branches sprout close together.
mechanisms small species
The mechanisms that make the small differences between species are the same ones that make the big differences between kingdoms,
evidence existence vacuum
With vacuum fluctuations, we have to distinguish between evidence for the existence of the fluctuations, and for their energy.