Top Problems with Evolution: Natural Se
When the drought ended and the rains returned, however, food was plentiful, and the average beak size returned to normal.
Source: evolutionnews.org
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When the drought ended and the rains returned, however, food was plentiful, and the average beak size returned to normal.
The abruptness seen in the Cambrian explosion can also be seen on smaller scales throughout the fossil record.
The spines of South American echidnas and North American porcupines are remarkably similar.