According to evolutionary biologist Thomas Cavalier-Smith, the idea that DNA contains all the information needed to make an organism “is simply false.”
When the drought ended and the rains returned, however, food was plentiful, and the average beak size returned to normal.
Common ancestry does not emerge from the inconsistent findings of molecular phylogenetics.
The abruptness seen in the Cambrian explosion can also be seen on smaller scales throughout the fossil record.
The spines of Australian echidnas and North American porcupines are remarkably similar.