As an aside there: the blog post briefly talks about birds. It turns out that membrane wings are much easier to evolve than feathered wings. There have been lots of membrane winged creatures (including "birds" with membrane wings in the Jurassic) but not nearly as many appearances of feathered wings.
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Thank you for link.
As an aside there: the blog post briefly talks about birds. It turns out that membrane wings are much easier to evolve than feathered wings. There have been lots of membrane winged creatures (including "birds" with membrane wings in the Jurassic) but not nearly as many appearances of feathered wings.
https://www.youtube.com/watch?v=HxA38gH8Gj4