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PoopLogg t1_j4ztif9 wrote

Reply to comment by anon525as in Given that reproduction is difficult or impossible when both animals have different numbers of chromosomes, how did so many species evolve to have so many different numbers of them? by MercurioLeCher

> >When cells divide and grow the genetic code isn't copied 100% correctly. There are errors, some get fixed some don't. The ones that don't get fixed and continue to exist are what we call cancer. >

Sometimes it's a cancer, sometimes it's a webbing between your fingers, and that helps you glide when you fall off a tree, and in a million years you're a bat.

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