There is evidenceto support both scenarios, and the interaction between innatepredisposition and the environment is a plausible explanation.
Though they can't yet prove that this is what happened on Mars, it seems like a plausible explanation, and doesn't require water for the reddening process.
Adaptive introgression of mimicry loci is therefore a plausible explanation for parallel evolution of multiple mimetic patterns in the melpomene–silvaniform clade.
The new paper USES more advanced instruments to refute the critics' theory, arguing that ancient life remains the most plausible explanation.
