Evolutionists must say that echolocation evolved four times independently 1 (the problem of convergence):
- Toothed whales
- Cave swiftlets
Convergence: A Problem for Evolution
When evolutionists try to draw their "tree" of related animals, they have a problem: not everything "fits." They must say that some things---even things that are extremely similar---evolved multiple times independently (called convergence). They say that eyes evolved 40-60 times independently. This is awkward for evolutionists to explain, but it makes much more sense for a creationist: God reuses good designs!
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Dawkins, R. (2004). The Ancestor's Tale: A Pilgrimage to the Dawn of Evolution. Boston: Houghton Mifflin.
- Dawkins, 2004, p. 588-589 ↩