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> A single mutated letter in DNA in a single cell can cause a tumor that kills a blue whale.

Side note: whales rarely get cancer.

https://en.wikipedia.org/wiki/Peto's_paradox

https://www.youtube.com/watch?v=1AElONvi9WQ

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Scales can also decouple from each other. Complex trait genetic variation at the whole genome level acts predominantly in an additive fashion even though individual genes and variants have clearly non-linear epistatic interactions.
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