Hello again,
With "native speaker" I meant English native speaker. I am German and only majoring in English. Thank you very much for your comment on my example, but you did not write anything about the "And yet" at the beginning of the new paragraph. Does it sound odd or inadequate to you? Sure, you are welcome to read my MA thesis as soon as it is completed. In this case, I need your e-mail address. It will take me up to mid July to finish my work. Regarding your riddle, I haven't got a clue.
Greetings from Germany,
Ulrich

... Correction: What does this sound like to a native speaker? ;-)

Hello @ all,
I have a special interest in this question as I am writing my MA thesis about animals in dystopian literature and, although it had been said to me that I should not use "and" at the beginning of a new sentence, I did so in combination with "yet". I believe, it indicates a connection and a contrast at the same time and focuses the attention more than just by utilizing "yet".
Here comes my example:
"...Nonetheless, despite the existence of alternative concepts to the European human-animal paradigm, their general impact on modern Western thinking has not become momentous so far.
And yet, in spite of our contemporary society still being pervaded by the dichotomous animal-human relationship, a gradual destabilization of selfsame has concurrently come to pass since the Victorian period, most prominently in the realms of science, art and literature".
What does is sound like for a native speaker?
Greetings from Germany,
Ulrich