It’s interesting to see what Derek E. G. Briggs is willing to admit about the Cambrian explosion.
Physical chemists are justifiably proud of their tiny motors that do little more than spin. How can they say that much more complex motors in life evolved?
The strength of a theory can be gauged by how well it stands up to attacks and how well it incorporates new evidence.
With cryo-electron microscopy, scientists have zoomed in on a molecular machine that is very different from the Type III Secretion System.
Apart from their being adorable, what many may not realize is that their motion on the sand is also amazingly efficient.