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Rigorous Science Could an animal evolve iridescent horns that appear metallic like chrysina resplendens' chitinous exoskeletons?

Sort of two questions here, but very related. One about whether a mammal-like animal could evolve to have a chitinous endoskeleton, I guess. Then a question of whether, if they grow horns, that ske...

2 answers  ·  posted 4y ago by LukasExemplar‭  ·  last activity 4y ago by LukasExemplar‭

Question biology skeletons biochemistry