This is different to Density of Bird Brains then . (sorry chaps ).
We'd have to call the birds bone structure sophisticated,
Was it developed by a inner awareness aligned to a higher reality ?
Complex would also aply , also to the wingspars etc of the Me 323 Giant,
and the Zepplins / airships , where the appropriate word might be complex.
Who's for emulateing these ? Maybe replica's of Buckingham palace or suchlike from matchstics would be easier,
allowing for the accuracy of fit for consistant structural characteristics,However , such complexity would lend itself to patterns for composite
structure moulds , if it had repeated use applications .Tho if someone makes a blue with the release agent thered be a degree of angst in
retreaving the moulds.
The old man powered balsa wood contraptions , such as the one that flew the english channel, come to mind .
One would have to be cautious with computer assisted design though, least the whole thing spontainiously colapse at
Some point, like a Lotus 40 .