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bdbdbd said:
@Slimebeast: The obvious problem here is, that asked a question, Manus gave you an answer, and then the answer won't do since it doesn't fit your pre set classification.
But Manus did point out that there are species that are developing wings.

No.

Those three examples will never be able to take off the ground. They'll remain gliders. You could spin it and say they're on a 'dead end' path in evolution if you will, but really for the theory to be valid we need to see many examples of ostritches/kiwis/bugs but reversed so to speak.