The article above is based on this article in Nature (Links to an external site.). The Nature article is meant for scientific professionals but it is still fairly readable and there are good photos. I highly recommend you have a look at it! Also, in case you are wondering what a castrato opera singer sounds like, check out this YouTube video of the last recorded castrato (Links to an external site.), Allesandro Moreschi.
For your initial post, you should be using your textbook and the articles linked above as your primary sources to answer the questions below. The purpose of this first post is to apply the information that you’re practicing from your learning objectives. Later, in the comments, I will expect you to do a bit of research online and support your comments with evidence, but in your initial post please stick to your textbook and the article(s).
In your first post, please address each of the following questions: