Twins

... was found sometimes to resemble the one parent, and sometimes the other; but did not usually blend the characters of each; and, in the cases of twins, the two lambs were often equally diverse with their parents. This variety was extensively propagated, in consequence of being less able to jump ...

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... they can also arise by recombination during meiosis that ensures that no two individuals will ever be genetically identical (except monozygotic twins). So, bad alleles, over time, tend to be slowly (sometimes quickly if they are fatal or prevent reproduction) removed from populations by means ...

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... two identical sperm would have to each fertilise two identical eggs, and that's not too likely to happen (we're not considering monozygotic twins here). If you're interested in things like free will, determinism, etc., have a look at "Freedom Evolves" by Daniel C. Dennett. He's ...

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... on occasion. I've gotten the same reaction. Haha, when getting my license I said hazel they said blue. I didn't know it had anything to do with twins.. I can't imagine why it would, but right on. Good to read that.

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... my life but funny when you catch someone not knowing which eye to stare at, they keep looking between both of them. I heard this has to do with twins that never split. I'd really like to look into this further since now I see from this group I have more unusual than most posted. Mine are not ...

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