Final answer:
It is not specified in the text of the Wings of Fire series whether the wingless IceWing-SandWing hybrid and the dragon with butterfly-like wings found in Burn's weirdling tower were from SilkWings. These specimens may come from different dragon tribes or represent unique mutations; the series leaves this ambiguous.
Step-by-step explanation:
In the fantasy series Wings of Fire, the presence of a wingless IceWing-SandWing hybrid in Burn's weirdling tower, alongside a dragon wing that resembled a butterfly wing, raises questions about their origins. Specifically, the question asks whether these specimens came from SilkWings, which are a tribe of dragons within the fictional world of Wings of Fire. Given the context of the series and the biology of the dragon tribes, it is understood that SilkWings are the dragon tribe with butterfly-like wings. However, Burn's collection is known for its peculiar and often unique creatures, and there is no explicit text in the series indicating that these particular specimens came from SilkWings.
As such, the answer to the question would be C) It's not specified in the text. This ambiguity in the textual evidence means that readers are left to infer or imagine the specific origins of these mysterious creatures in Burn's collection.
Discussing the evolution of wings from a biological standpoint, we understand that wings have evolved independently in various lineages through convergent evolution. For example, the wings of bats and insects are analogous structures; they are similar in function but have evolved from very different origins. This concept parallels the diversity of dragon tribes in Wings of Fire, where different tribes may have different types of wings without sharing a common evolutionary path. Therefore, the wingless dragon and the butterfly-like wing could very well be from dragon tribes other than SilkWings or may represent unique mutations within the world's rich tapestry of dragon species.