Say you had one duck egg and one chicken egg. You remove them both from their respective nests (do ducks even make nests??) and allow them to hatch and grow up together. They never see any animals other than the other; that is, the chicken never sees any animal other than the one duck, and vice versa. Will the chicken be "aware" that it is a chicken rather than a duck? If you insert the chicken into a duck family, will it try to fit in before they reject it (assuming they do)? Or if you introduce the chicken to a community of ducks and chickens, whom will the chicken choose to chill with? Will it identify with the ducks because it's used to them? Or does something inside it tell it that it's a chicken and allow it to recognize members of its own species? What if the chicken went to join the ducks while the duck went to join the chickens? WHAT THEN?
I feel like there must be some obvious answer I'm overlooking, like the time I asked my stepdad (NASA chemist) why we don't just put our trash and nuclear waste on rockets and shoot them into the sun*. Please help. If nobody answers to my satisfaction, I may be compelled to spend $600 registering my new pets with the authorities (so as not to violate my contract's pet clause) in order that I may attempt a non-vegan experiment.
*Shamefully, I was probably about 15 at the time and had been proudly nursing the idea for at least 5 years. Not my most brilliant moment, I admit. Slightly more brilliant, perhaps, than my plan to put little wind turbines on car roofs and grills and sideview mirrors to generate electricity. [I'm still convinced there may be a way to pull this off].